Base | Representation |
---|---|
bin | 101001010110101100… |
… | …1101100001000111001 |
3 | 22111020012221012110100 |
4 | 1102231121230020321 |
5 | 2423334441214211 |
6 | 104444215110013 |
7 | 6262521060252 |
oct | 1225531541071 |
9 | 274205835410 |
10 | 88808538681 |
11 | 34733117615 |
12 | 15265972309 |
13 | 84b402a495 |
14 | 4426991b29 |
15 | 249b97b156 |
hex | 14ad66c239 |
88808538681 has 24 divisors (see below), whose sum is σ = 128777168520. Its totient is φ = 58976153856.
The previous prime is 88808538631. The next prime is 88808538683. The reversal of 88808538681 is 18683580888.
It can be written as a sum of positive squares in 4 ways, for example, as 12607696656 + 76200842025 = 112284^2 + 276045^2 .
It is not a de Polignac number, because 88808538681 - 26 = 88808538617 is a prime.
It is a super-2 number, since 2×888085386812 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (88808538683) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2861515 + ... + 2892383.
It is an arithmetic number, because the mean of its divisors is an integer number (5365715355).
Almost surely, 288808538681 is an apocalyptic number.
It is an amenable number.
88808538681 is a deficient number, since it is larger than the sum of its proper divisors (39968629839).
88808538681 is a wasteful number, since it uses less digits than its factorization.
88808538681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32105 (or 32102 counting only the distinct ones).
The product of its (nonzero) digits is 23592960, while the sum is 63.
The spelling of 88808538681 in words is "eighty-eight billion, eight hundred eight million, five hundred thirty-eight thousand, six hundred eighty-one".
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