Base | Representation |
---|---|
bin | 101000100000111100… |
… | …1111100000011111100 |
3 | 22022120112100122110001 |
4 | 1101001321330003330 |
5 | 2411141243200210 |
6 | 103545232124044 |
7 | 6200031515113 |
oct | 1210171740374 |
9 | 268515318401 |
10 | 87005053180 |
11 | 339980a2231 |
12 | 14a41996624 |
13 | 82874b9ab6 |
14 | 42d524cc7a |
15 | 23e348503a |
hex | 1441e7c0fc |
87005053180 has 24 divisors (see below), whose sum is σ = 183085807968. Its totient is φ = 34730555328.
The previous prime is 87005053171. The next prime is 87005053207. The reversal of 87005053180 is 8135050078.
It is a super-2 number, since 2×870050531802 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
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, 4456639 + ... + 4476118.
It is an arithmetic number, because the mean of its divisors is an integer number (7628575332).
Almost surely, 287005053180 is an apocalyptic number.
It is an amenable number.
87005053180 is an abundant number, since it is smaller than the sum of its proper divisors (96080754788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87005053180 is a wasteful number, since it uses less digits than its factorization.
87005053180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8933253 (or 8933251 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 37.
The spelling of 87005053180 in words is "eighty-seven billion, five million, fifty-three thousand, one hundred eighty".
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