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87668088 = 23323241659
BaseRepresentation
bin1010011100110…
…11010101111000
320002222000000020
411032123111320
5134420334323
612411010440
72113111044
oct516332570
9202860006
1087668088
1145539372
1225439a20
1315216711
14b901024
157a6aae3
hex539b578

87668088 has 64 divisors (see below), whose sum is σ = 229996800. Its totient is φ = 27793920.

The previous prime is 87668069. The next prime is 87668089. The reversal of 87668088 is 88086678.

It is a self number, because there is not a number n which added to its sum of digits gives 87668088.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132703 + ... + 133361.

It is an arithmetic number, because the mean of its divisors is an integer number (3593700).

Almost surely, 287668088 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 87668088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114998400).

87668088 is an abundant number, since it is smaller than the sum of its proper divisors (142328712).

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

87668088 is a wasteful number, since it uses less digits than its factorization.

87668088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 87668088 is about 9363.1238376943. The cubic root of 87668088 is about 444.2360971422.

The spelling of 87668088 in words is "eighty-seven million, six hundred sixty-eight thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 241 276 482 552 659 723 964 1318 1446 1928 1977 2636 2892 3954 5272 5543 5784 7908 11086 15157 15816 16629 22172 30314 33258 44344 45471 60628 66516 90942 121256 133032 158819 181884 317638 363768 476457 635276 952914 1270552 1905828 3652837 3811656 7305674 10958511 14611348 21917022 29222696 43834044 87668088