Base | Representation |
---|---|
bin | 10101011110000001… |
… | …100100101000100010 |
3 | 2012111112222112021100 |
4 | 111132001210220202 |
5 | 334202342310403 |
6 | 14331242535230 |
7 | 1444154243031 |
oct | 253601445042 |
9 | 65445875240 |
10 | 23052306978 |
11 | 985a476478 |
12 | 4574207516 |
13 | 2234b7463c |
14 | 1189826718 |
15 | 8edbe32a3 |
hex | 55e064a22 |
23052306978 has 12 divisors (see below), whose sum is σ = 49946665158. Its totient is φ = 7684102320.
The previous prime is 23052306943. The next prime is 23052306997. The reversal of 23052306978 is 87960325032.
23052306978 is a `hidden beast` number, since 2 + 30 + 523 + 0 + 6 + 97 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 14915004129 + 8137302849 = 122127^2 + 90207^2 .
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640341843 + ... + 640341878.
Almost surely, 223052306978 is an apocalyptic number.
23052306978 is an abundant number, since it is smaller than the sum of its proper divisors (26894358180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23052306978 is a wasteful number, since it uses less digits than its factorization.
23052306978 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1280683729 (or 1280683726 counting only the distinct ones).
The product of its (nonzero) digits is 544320, while the sum is 45.
The spelling of 23052306978 in words is "twenty-three billion, fifty-two million, three hundred six thousand, nine hundred seventy-eight".
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