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87987938 = 2245917891
BaseRepresentation
bin1010011111010…
…01011011100010
320010120020202112
411033221123202
5140011103223
612421515322
72115612413
oct517513342
9203506675
1087987938
1145737705
1225572b42
13152c918c
14b98580a
157ad0778
hex53e96e2

87987938 has 8 divisors (see below), whose sum is σ = 132042960. Its totient is φ = 43973620.

The previous prime is 87987929. The next prime is 87987941. The reversal of 87987938 is 83978978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4028 + ... + 13863.

It is an arithmetic number, because the mean of its divisors is an integer number (16505370).

Almost surely, 287987938 is an apocalyptic number.

87987938 is a deficient number, since it is larger than the sum of its proper divisors (44055022).

87987938 is a wasteful number, since it uses less digits than its factorization.

87987938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20352.

The product of its digits is 6096384, while the sum is 59.

The square root of 87987938 is about 9380.1885908547. The cubic root of 87987938 is about 444.7756947248.

The spelling of 87987938 in words is "eighty-seven million, nine hundred eighty-seven thousand, nine hundred thirty-eight".

Divisors: 1 2 2459 4918 17891 35782 43993969 87987938