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87468672 = 2731713399
BaseRepresentation
bin1010011011010…
…10101010000000
320002120212110110
411031222222000
5134342444142
612402431320
72111320464
oct515525200
9202525413
1087468672
1145412565
1225362540
1315176a15
14b88c4a4
157a2b99c
hex536aa80

87468672 has 64 divisors (see below), whose sum is σ = 246024000. Its totient is φ = 27439104.

The previous prime is 87468671. The next prime is 87468679. The reversal of 87468672 is 27686478.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is not an unprimeable number, because it can be changed into a prime (87468671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172 + ... + 13227.

It is an arithmetic number, because the mean of its divisors is an integer number (3844125).

Almost surely, 287468672 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 87468672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123012000).

87468672 is an abundant number, since it is smaller than the sum of its proper divisors (158555328).

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

87468672 is a wasteful number, since it uses less digits than its factorization.

87468672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433 (or 13421 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 87468672 is about 9352.4687649839. The cubic root of 87468672 is about 443.8990112009.

The spelling of 87468672 in words is "eighty-seven million, four hundred sixty-eight thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 68 96 102 128 136 192 204 272 384 408 544 816 1088 1632 2176 3264 6528 13399 26798 40197 53596 80394 107192 160788 214384 227783 321576 428768 455566 643152 683349 857536 911132 1286304 1366698 1715072 1822264 2572608 2733396 3644528 5145216 5466792 7289056 10933584 14578112 21867168 29156224 43734336 87468672