Base | Representation |
---|---|
bin | 100000011100111001… |
… | …0001001101101100111 |
3 | 20122212202000012020110 |
4 | 1000321302021231213 |
5 | 2120210331100111 |
6 | 52003055304103 |
7 | 5014646042355 |
oct | 1007162115547 |
9 | 218782005213 |
10 | 69688925031 |
11 | 27611643920 |
12 | 1160a81b033 |
13 | 6757b6c91b |
14 | 353159c7d5 |
15 | 1c2d1655a6 |
hex | 1039c89b67 |
69688925031 has 8 divisors (see below), whose sum is σ = 101365709184. Its totient is φ = 42235712120.
The previous prime is 69688925023. The next prime is 69688925069. The reversal of 69688925031 is 13052988696.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 69688925031 - 23 = 69688925023 is a prime.
It is a super-2 number, since 2×696889250312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69688925081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055892771 + ... + 1055892836.
It is an arithmetic number, because the mean of its divisors is an integer number (12670713648).
Almost surely, 269688925031 is an apocalyptic number.
69688925031 is a deficient number, since it is larger than the sum of its proper divisors (31676784153).
69688925031 is a wasteful number, since it uses less digits than its factorization.
69688925031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2111785621.
The product of its (nonzero) digits is 5598720, while the sum is 57.
The spelling of 69688925031 in words is "sixty-nine billion, six hundred eighty-eight million, nine hundred twenty-five thousand, thirty-one".
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