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87944088 = 23323159319
BaseRepresentation
bin1010011110111…
…10101110011000
320010111000121110
411033132232120
5140003202323
612420540320
72115340521
oct517365630
9203430543
1087944088
1145707771
12255516a0
13152b222b
14b973848
157ac2793
hex53deb98

87944088 has 32 divisors (see below), whose sum is σ = 229420800. Its totient is φ = 28039968.

The previous prime is 87944069. The next prime is 87944089. The reversal of 87944088 is 88044978.

It is a super-2 number, since 2×879440882 = 15468325228303488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87944089) 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, 79108 + ... + 80211.

It is an arithmetic number, because the mean of its divisors is an integer number (7169400).

Almost surely, 287944088 is an apocalyptic number.

It is an amenable number.

87944088 is an abundant number, since it is smaller than the sum of its proper divisors (141476712).

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

87944088 is a wasteful number, since it uses less digits than its factorization.

87944088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159351 (or 159347 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 87944088 is about 9377.8509265183. The cubic root of 87944088 is about 444.7017957507.

The spelling of 87944088 in words is "eighty-seven million, nine hundred forty-four thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 159319 318638 477957 637276 955914 1274552 1911828 3664337 3823656 7328674 10993011 14657348 21986022 29314696 43972044 87944088