Base | Representation |
---|---|
bin | 101000110000101000… |
… | …1011110001110100010 |
3 | 22100221012121120111102 |
4 | 1101201101132032202 |
5 | 2413231004104010 |
6 | 104113351514402 |
7 | 6216051624326 |
oct | 1214121361642 |
9 | 270835546442 |
10 | 87531316130 |
11 | 34138167395 |
12 | 14b6a088a02 |
13 | 833c538bab |
14 | 43450bd986 |
15 | 2424789ba5 |
hex | 146145e3a2 |
87531316130 has 16 divisors (see below), whose sum is σ = 157560553080. Its totient is φ = 35011596672.
The previous prime is 87531316127. The next prime is 87531316153. The reversal of 87531316130 is 3161313578.
It can be written as a sum of positive squares in 4 ways, for example, as 38113581529 + 49417734601 = 195227^2 + 222301^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380102 + ... + 565278.
Almost surely, 287531316130 is an apocalyptic number.
87531316130 is a deficient number, since it is larger than the sum of its proper divisors (70029236950).
87531316130 is a wasteful number, since it uses less digits than its factorization.
87531316130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232453.
The product of its (nonzero) digits is 45360, while the sum is 38.
The spelling of 87531316130 in words is "eighty-seven billion, five hundred thirty-one million, three hundred sixteen thousand, one hundred thirty".
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