Base | Representation |
---|---|
bin | 1010011110101… |
… | …11001110111000 |
3 | 20010102110111212 |
4 | 11033113032320 |
5 | 140001212100 |
6 | 12420142252 |
7 | 2115152201 |
oct | 517271670 |
9 | 203373455 |
10 | 87913400 |
11 | 45696703 |
12 | 25537988 |
13 | 152a1283 |
14 | b9665a8 |
15 | 7ab8635 |
hex | 53d73b8 |
87913400 has 24 divisors (see below), whose sum is σ = 204399120. Its totient is φ = 35165280.
The previous prime is 87913387. The next prime is 87913403. The reversal of 87913400 is 431978.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87913403) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219584 + ... + 219983.
It is an arithmetic number, because the mean of its divisors is an integer number (8516630).
Almost surely, 287913400 is an apocalyptic number.
It is an amenable number.
87913400 is an abundant number, since it is smaller than the sum of its proper divisors (116485720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87913400 is a wasteful number, since it uses less digits than its factorization.
87913400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 439583 (or 439574 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 87913400 is about 9376.2145879881. The cubic root of 87913400 is about 444.6500636533.
The spelling of 87913400 in words is "eighty-seven million, nine hundred thirteen thousand, four hundred".
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