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87025122 = 23231263593
BaseRepresentation
bin1010010111111…
…10010111100010
320001202100000200
411023332113202
5134234300442
612345130030
72104462362
oct513762742
9201670020
1087025122
114513a298
1225189916
131504cb72
14b7b49a2
15799034c
hex52fe5e2

87025122 has 48 divisors (see below), whose sum is σ = 195706368. Its totient is φ = 27918720.

The previous prime is 87025121. The next prime is 87025151. The reversal of 87025122 is 22152078.

It is a super-2 number, since 2×870251222 = 15146743718229768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87025121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146458 + ... + 147050.

It is an arithmetic number, because the mean of its divisors is an integer number (4077216).

Almost surely, 287025122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87025122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97853184).

87025122 is an abundant number, since it is smaller than the sum of its proper divisors (108681246).

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

87025122 is a wasteful number, since it uses less digits than its factorization.

87025122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 87025122 is about 9328.7256364415. The cubic root of 87025122 is about 443.1474081715.

It can be divided in two parts, 8702 and 5122, that added together give a cube (13824 = 243).

The spelling of 87025122 in words is "eighty-seven million, twenty-five thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 31 62 93 186 263 279 526 558 593 789 1186 1578 1779 2367 3558 4734 5337 8153 10674 16306 18383 24459 36766 48918 55149 73377 110298 146754 155959 165447 311918 330894 467877 935754 1403631 2807262 4834729 9669458 14504187 29008374 43512561 87025122