Base | Representation |
---|---|
bin | 111001010010011101… |
… | …0110110101000111000 |
3 | 102202112220002010000121 |
4 | 1302210322312220320 |
5 | 4003424122211424 |
6 | 132303425343024 |
7 | 11613461353321 |
oct | 1624472665070 |
9 | 382486063017 |
10 | 123025975864 |
11 | 481a1a57620 |
12 | 1ba15197a74 |
13 | b7a809502c |
14 | 5d51191448 |
15 | 330097aee4 |
hex | 1ca4eb6a38 |
123025975864 has 32 divisors (see below), whose sum is σ = 251658051840. Its totient is φ = 55917784800.
The previous prime is 123025975847. The next prime is 123025975871. The reversal of 123025975864 is 468579520321.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449969 + ... + 2499679.
It is an arithmetic number, because the mean of its divisors is an integer number (7864314120).
It is a 1-persistent number, because it is pandigital, but 2⋅123025975864 = 246051951728 is not.
Almost surely, 2123025975864 is an apocalyptic number.
It is an amenable number.
123025975864 is an abundant number, since it is smaller than the sum of its proper divisors (128632075976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123025975864 is a wasteful number, since it uses less digits than its factorization.
123025975864 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77851 (or 77847 counting only the distinct ones).
The product of its (nonzero) digits is 3628800, while the sum is 52.
The spelling of 123025975864 in words is "one hundred twenty-three billion, twenty-five million, nine hundred seventy-five thousand, eight hundred sixty-four".
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