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86988968 = 2311988511
BaseRepresentation
bin1010010111101…
…01100010101000
320001200111102122
411023311202220
5134232121333
612344250412
72104252103
oct513654250
9201614378
1086988968
1145115110
1225170a08
1315039581
14b7a573a
157984798
hex52f58a8

86988968 has 16 divisors (see below), whose sum is σ = 177932160. Its totient is φ = 39540400.

The previous prime is 86988943. The next prime is 86988971.

It is a happy number.

86988968 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 86988968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494168 + ... + 494343.

It is an arithmetic number, because the mean of its divisors is an integer number (11120760).

Almost surely, 286988968 is an apocalyptic number.

86988968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

86988968 is an abundant number, since it is smaller than the sum of its proper divisors (90943192).

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

86988968 is a wasteful number, since it uses less digits than its factorization.

86988968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988528 (or 988524 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 62.

The square root of 86988968 is about 9326.7876570661. The cubic root of 86988968 is about 443.0860321373.

The spelling of 86988968 in words is "eighty-six million, nine hundred eighty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 988511 1977022 3954044 7908088 10873621 21747242 43494484 86988968