Base | Representation |
---|---|
bin | 100000001100011111… |
… | …1101111000101110011 |
3 | 20121110101220212112002 |
4 | 1000120333233011303 |
5 | 2113044020303000 |
6 | 51432325124215 |
7 | 4665216265622 |
oct | 1003077570563 |
9 | 217411825462 |
10 | 69138837875 |
11 | 2735a087238 |
12 | 1149655966b |
13 | 669abcb873 |
14 | 34bc4c96b9 |
15 | 1be9c068d5 |
hex | 1018fef173 |
69138837875 has 32 divisors (see below), whose sum is σ = 88901841600. Its totient is φ = 53657260800.
The previous prime is 69138837811. The next prime is 69138837881. The reversal of 69138837875 is 57873883196.
It is not a de Polignac number, because 69138837875 - 26 = 69138837811 is a prime.
It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 530996 + ... + 648254.
It is an arithmetic number, because the mean of its divisors is an integer number (2778182550).
Almost surely, 269138837875 is an apocalyptic number.
69138837875 is a deficient number, since it is larger than the sum of its proper divisors (19763003725).
69138837875 is a wasteful number, since it uses less digits than its factorization.
69138837875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117416 (or 117406 counting only the distinct ones).
The product of its digits is 60963840, while the sum is 65.
The spelling of 69138837875 in words is "sixty-nine billion, one hundred thirty-eight million, eight hundred thirty-seven thousand, eight hundred seventy-five".
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