Base | Representation |
---|---|
bin | 1010011110100… |
… | …10010000111111 |
3 | 20010101102121100 |
4 | 11033102100333 |
5 | 140000034210 |
6 | 12415504143 |
7 | 2115035655 |
oct | 517222077 |
9 | 203342540 |
10 | 87893055 |
11 | 45682398 |
12 | 25528053 |
13 | 15294c33 |
14 | b95cdd5 |
15 | 7ab25c0 |
hex | 53d243f |
87893055 has 48 divisors (see below), whose sum is σ = 161066880. Its totient is φ = 44265984.
The previous prime is 87893041. The next prime is 87893059. The reversal of 87893055 is 55039878.
It is not a de Polignac number, because 87893055 - 28 = 87892799 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 87893055.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87893059) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60619 + ... + 62051.
It is an arithmetic number, because the mean of its divisors is an integer number (3355560).
Almost surely, 287893055 is an apocalyptic number.
87893055 is a deficient number, since it is larger than the sum of its proper divisors (73173825).
87893055 is a wasteful number, since it uses less digits than its factorization.
87893055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1520 (or 1517 counting only the distinct ones).
The product of its (nonzero) digits is 302400, while the sum is 45.
The square root of 87893055 is about 9375.1295991042. The cubic root of 87893055 is about 444.6157605646.
The spelling of 87893055 in words is "eighty-seven million, eight hundred ninety-three thousand, fifty-five".
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