Base | Representation |
---|---|
bin | 11000000110011110… |
… | …00110011011110110 |
3 | 1020101202101001122100 |
4 | 30003033012123312 |
5 | 202444413121204 |
6 | 5535535442530 |
7 | 635434213665 |
oct | 140317063366 |
9 | 36352331570 |
10 | 12939192054 |
11 | 553a922558 |
12 | 2611386446 |
13 | 12b2901079 |
14 | 8aa65addc |
15 | 50ae3ea39 |
hex | 3033c66f6 |
12939192054 has 24 divisors (see below), whose sum is σ = 28255668480. Its totient is φ = 4279102128.
The previous prime is 12939192053. The next prime is 12939192059. The reversal of 12939192054 is 45029193921.
12939192054 is a `hidden beast` number, since 129 + 391 + 92 + 0 + 54 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12939192053) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2827809 + ... + 2832380.
It is an arithmetic number, because the mean of its divisors is an integer number (1177319520).
Almost surely, 212939192054 is an apocalyptic number.
12939192054 is an abundant number, since it is smaller than the sum of its proper divisors (15316476426).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12939192054 is a wasteful number, since it uses less digits than its factorization.
12939192054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5660324 (or 5660321 counting only the distinct ones).
The product of its (nonzero) digits is 174960, while the sum is 45.
It can be divided in two parts, 129391 and 92054, that added together give a triangular number (221445 = T665).
The spelling of 12939192054 in words is "twelve billion, nine hundred thirty-nine million, one hundred ninety-two thousand, fifty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •