Base | Representation |
---|---|
bin | 1100010000111… |
… | …11000111100000 |
3 | 21011121020200010 |
4 | 12020133013200 |
5 | 202314403104 |
6 | 14113124520 |
7 | 2356350510 |
oct | 610370740 |
9 | 234536603 |
10 | 102887904 |
11 | 53094229 |
12 | 2a559740 |
13 | 18415122 |
14 | d943840 |
15 | 9075489 |
hex | 621f1e0 |
102887904 has 48 divisors (see below), whose sum is σ = 308665728. Its totient is φ = 29396352.
The previous prime is 102887891. The next prime is 102887933. The reversal of 102887904 is 409788201.
It is a tau number, because it is divible by the number of its divisors (48).
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, 75882 + ... + 77225.
It is an arithmetic number, because the mean of its divisors is an integer number (6430536).
Almost surely, 2102887904 is an apocalyptic number.
102887904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
102887904 is an abundant number, since it is smaller than the sum of its proper divisors (205777824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102887904 is a wasteful number, since it uses less digits than its factorization.
102887904 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 153127 (or 153119 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 39.
The square root of 102887904 is about 10143.3674881668. The cubic root of 102887904 is about 468.5847027485.
The spelling of 102887904 in words is "one hundred two million, eight hundred eighty-seven thousand, nine hundred four".
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