Base | Representation |
---|---|
bin | 101000100101000100… |
… | …1011101010110001000 |
3 | 22022221011120022110220 |
4 | 1101022021131112020 |
5 | 2411432143330100 |
6 | 104011052110040 |
7 | 6203331106665 |
oct | 1211211352610 |
9 | 268834508426 |
10 | 87143339400 |
11 | 33a59163767 |
12 | 14a80165320 |
13 | 82aa047070 |
14 | 4309768a6c |
15 | 240069daa0 |
hex | 144a25d588 |
87143339400 has 192 divisors, whose sum is σ = 292201089600. Its totient is φ = 21356559360.
The previous prime is 87143339383. The next prime is 87143339453. The reversal of 87143339400 is 493334178.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1761807 + ... + 1810593.
It is an arithmetic number, because the mean of its divisors is an integer number (1521880675).
Almost surely, 287143339400 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87143339400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146100544800).
87143339400 is an abundant number, since it is smaller than the sum of its proper divisors (205057750200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87143339400 is a wasteful number, since it uses less digits than its factorization.
87143339400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49048 (or 49039 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 42.
The spelling of 87143339400 in words is "eighty-seven billion, one hundred forty-three million, three hundred thirty-nine thousand, four hundred".
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