Base | Representation |
---|---|
bin | 1010011101001… |
… | …01001000100000 |
3 | 20010001001000120 |
4 | 11032211020200 |
5 | 134423130232 |
6 | 12411520240 |
7 | 2113336005 |
oct | 516451040 |
9 | 203031016 |
10 | 87708192 |
11 | 45566510 |
12 | 25459080 |
13 | 1522ba50 |
14 | b9118ac |
15 | 7a7792c |
hex | 53a5220 |
87708192 has 96 divisors (see below), whose sum is σ = 270527040. Its totient is φ = 24529920.
The previous prime is 87708169. The next prime is 87708197. The reversal of 87708192 is 29180778.
It is a tau number, because it is divible by the number of its divisors (96).
It is not an unprimeable number, because it can be changed into a prime (87708197) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10534 + ... + 16922.
It is an arithmetic number, because the mean of its divisors is an integer number (2817990).
Almost surely, 287708192 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 87708192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135263520).
87708192 is an abundant number, since it is smaller than the sum of its proper divisors (182818848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87708192 is a wasteful number, since it uses less digits than its factorization.
87708192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6426 (or 6418 counting only the distinct ones).
The product of its (nonzero) digits is 56448, while the sum is 42.
The square root of 87708192 is about 9365.2651857809. The cubic root of 87708192 is about 444.3038258104.
The spelling of 87708192 in words is "eighty-seven million, seven hundred eight thousand, one hundred ninety-two".
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