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87976672 = 257974049
BaseRepresentation
bin1010011111001…
…10101011100000
320010112200022021
411033212223200
5140010223142
612421351224
72115534520
oct517465340
9203480267
1087976672
114572a1a3
1225568514
13152c4004
14b981680
157acc267
hex53e6ae0

87976672 has 48 divisors (see below), whose sum is σ = 200037600. Its totient is φ = 37306368.

The previous prime is 87976657. The next prime is 87976673. The reversal of 87976672 is 27667978.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87976673) 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, 19704 + ... + 23752.

It is an arithmetic number, because the mean of its divisors is an integer number (4167450).

Almost surely, 287976672 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 87976672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100018800).

87976672 is an abundant number, since it is smaller than the sum of its proper divisors (112060928).

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

87976672 is a wasteful number, since it uses less digits than its factorization.

87976672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163 (or 4155 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 52.

The square root of 87976672 is about 9379.5880506555. The cubic root of 87976672 is about 444.7567108467.

The spelling of 87976672 in words is "eighty-seven million, nine hundred seventy-six thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 97 112 194 224 388 679 776 1358 1552 2716 3104 4049 5432 8098 10864 16196 21728 28343 32392 56686 64784 113372 129568 226744 392753 453488 785506 906976 1571012 2749271 3142024 5498542 6284048 10997084 12568096 21994168 43988336 87976672