Base | Representation |
---|---|
bin | 101001000010101111… |
… | …0111100110000001101 |
3 | 22102111112202102020011 |
4 | 1102011132330300031 |
5 | 2421002020010223 |
6 | 104253532553221 |
7 | 6240106453330 |
oct | 1220536746015 |
9 | 272445672204 |
10 | 88138828813 |
11 | 3441a086692 |
12 | 150b9622811 |
13 | 8408365159 |
14 | 43a1a60617 |
15 | 245cc8d80d |
hex | 14857bcc0d |
88138828813 has 32 divisors (see below), whose sum is σ = 114109482240. Its totient is φ = 66256911360.
The previous prime is 88138828807. The next prime is 88138828823. The reversal of 88138828813 is 31882883188.
It is a cyclic number.
It is not a de Polignac number, because 88138828813 - 25 = 88138828781 is a prime.
It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (88138828823) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181606 + ... + 457447.
It is an arithmetic number, because the mean of its divisors is an integer number (3565921320).
Almost surely, 288138828813 is an apocalyptic number.
It is an amenable number.
88138828813 is a deficient number, since it is larger than the sum of its proper divisors (25970653427).
88138828813 is a wasteful number, since it uses less digits than its factorization.
88138828813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 639157.
The product of its digits is 4718592, while the sum is 58.
The spelling of 88138828813 in words is "eighty-eight billion, one hundred thirty-eight million, eight hundred twenty-eight thousand, eight hundred thirteen".
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