Base | Representation |
---|---|
bin | 10010111010101100… |
… | …010001111011111111 |
3 | 1221102120200111111221 |
4 | 102322230101323333 |
5 | 313044340223132 |
6 | 13155313254211 |
7 | 1316231325040 |
oct | 227254217377 |
9 | 57376614457 |
10 | 20312039167 |
11 | 8683686732 |
12 | 3b2a564367 |
13 | 1bb922c4b4 |
14 | da99108c7 |
15 | 7dd356e97 |
hex | 4bab11eff |
20312039167 has 16 divisors (see below), whose sum is σ = 24651797760. Its totient is φ = 16348010112.
The previous prime is 20312039119. The next prime is 20312039177. The reversal of 20312039167 is 76193021302.
It is not a de Polignac number, because 20312039167 - 27 = 20312039039 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20312039117) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660733 + ... + 690790.
It is an arithmetic number, because the mean of its divisors is an integer number (1540737360).
Almost surely, 220312039167 is an apocalyptic number.
20312039167 is a deficient number, since it is larger than the sum of its proper divisors (4339758593).
20312039167 is a wasteful number, since it uses less digits than its factorization.
20312039167 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1351662.
The product of its (nonzero) digits is 13608, while the sum is 34.
The spelling of 20312039167 in words is "twenty billion, three hundred twelve million, thirty-nine thousand, one hundred sixty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •