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87678912 = 2633114731
BaseRepresentation
bin1010011100111…
…01111111000000
320002222112212010
411032131333000
5134421211122
612411132520
72113154436
oct516357700
9202875763
1087678912
1145546512
1225444140
131521b619
14b904d56
157a6de0c
hex539dfc0

87678912 has 56 divisors (see below), whose sum is σ = 239483392. Its totient is φ = 28281600.

The previous prime is 87678827. The next prime is 87678931. The reversal of 87678912 is 21987678.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 13317.

Almost surely, 287678912 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 87678912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119741696).

87678912 is an abundant number, since it is smaller than the sum of its proper divisors (151804480).

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

87678912 is a wasteful number, since it uses less digits than its factorization.

87678912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14777 (or 14767 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 87678912 is about 9363.7018320747. The cubic root of 87678912 is about 444.2543790269.

The spelling of 87678912 in words is "eighty-seven million, six hundred seventy-eight thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 186 192 248 372 496 744 992 1488 1984 2976 5952 14731 29462 44193 58924 88386 117848 176772 235696 353544 456661 471392 707088 913322 942784 1369983 1414176 1826644 2739966 2828352 3653288 5479932 7306576 10959864 14613152 21919728 29226304 43839456 87678912