Mathematically 60

Sixty (60)

1. The Babylonian used the sexagesimal number system (base 60) to write numbers.

2. It can be divided by all numbers from 1 to 6 and also by 10, 12, 15, 20, 30 and 60. The Sumerians used this property to divide the sky into 6 parts each divided into units of 600.

3. It is the smallest number to have 12 factors—1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60.

4. The internal angle of equilateral triangle is 60degree.

5. The product of first Pythagorean triplet is 60.
3 x 4 x 5 = 60

6. It is the sum of twin prime 29 and 31.
60 = 29 + 31

7. It is a Harshad number because it is divisible by the sum of its digit.

8. The icosahdron has 60 equivalent edges.

9. It is a Heptagonal Pyramidal number.

10. The atomic number of Neodymium is 60.

11. In one hour there are 60 minutes and in 1 minute there is 60seconds.

12. Archimedian solids – truncated icosahedrons, rhombicosidodecahedron and snub dodecahedron have 60 vertices
13. It is a 21- gonal number.

14. It is an abundant number.

15. It is the sum of four consecutive primes.
60 = 11 + 13 + 17 + 19

16. It is the smallest number that can be expressed as the sum of two odd primes in 6 ways.
60 = 7 + 53
= 13 + 47
=19 + 41
= 17 + 43
= 29 + 31
= 23 + 37

Dr Rajesh Kumar Thakur
rkthakur1974@gmail.com