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86748688 = 24131724533
BaseRepresentation
bin1010010101110…
…10111000010000
320001020021211101
411022322320100
5134201424223
612335154144
72102231425
oct512727020
9201207741
1086748688
1144a70634
1225075954
1314c840b0
14b741d4c
1579384ad
hex52bae10

86748688 has 40 divisors (see below), whose sum is σ = 191659608. Its totient is φ = 37681152.

The previous prime is 86748679. The next prime is 86748689. The reversal of 86748688 is 88684768.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 86713344 = 188^2 + 9312^2 .

It is not an unprimeable number, because it can be changed into a prime (86748689) 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, 8731 + ... + 15802.

Almost surely, 286748688 is an apocalyptic number.

It is an amenable number.

86748688 is an abundant number, since it is smaller than the sum of its proper divisors (104910920).

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

86748688 is a wasteful number, since it uses less digits than its factorization.

86748688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24571 (or 24565 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 86748688 is about 9313.8975729820. The cubic root of 86748688 is about 442.6776934319.

The spelling of 86748688 in words is "eighty-six million, seven hundred forty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 13 16 17 26 34 52 68 104 136 208 221 272 442 884 1768 3536 24533 49066 98132 196264 318929 392528 417061 637858 834122 1275716 1668244 2551432 3336488 5102864 5421793 6672976 10843586 21687172 43374344 86748688