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87055936 = 2611313989
BaseRepresentation
bin1010011000001…
…01111001000000
320001210220021221
411030011321000
5134241242221
612345524424
72104651252
oct514057100
9201726257
1087055936
1145160460
12251a3714
1315060bb6
14b7c1cd2
157999541
hex5305e40

87055936 has 56 divisors (see below), whose sum is σ = 194584320. Its totient is φ = 38284800.

The previous prime is 87055907. The next prime is 87055939. The reversal of 87055936 is 63955078.

It is a junction number, because it is equal to n+sod(n) for n = 87055892 and 87055901.

It is not an unprimeable number, because it can be changed into a prime (87055939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19830 + ... + 23818.

It is an arithmetic number, because the mean of its divisors is an integer number (3474720).

Almost surely, 287055936 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 87055936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97292160).

87055936 is an abundant number, since it is smaller than the sum of its proper divisors (107528384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87055936 is a wasteful number, since it uses less digits than its factorization.

87055936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043 (or 4033 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 87055936 is about 9330.3770556178. The cubic root of 87055936 is about 443.1997054567.

It can be divided in two parts, 8705 and 5936, that added together give a palindrome (14641).

The spelling of 87055936 in words is "eighty-seven million, fifty-five thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 11 16 22 31 32 44 62 64 88 124 176 248 341 352 496 682 704 992 1364 1984 2728 3989 5456 7978 10912 15956 21824 31912 43879 63824 87758 123659 127648 175516 247318 255296 351032 494636 702064 989272 1360249 1404128 1978544 2720498 2808256 3957088 5440996 7914176 10881992 21763984 43527968 87055936