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87082568336 = 2429378956993
BaseRepresentation
bin101000100011010000…
…1101000101010010000
322022202221012211020202
41101012201220222100
52411321114141321
6104001041354332
76201662421611
oct1210641505220
9268687184222
1087082568336
1133a27926545
1214a639389a8
13829a58a15a
144301669c08
1523ea19770b
hex1446868a90

87082568336 has 80 divisors (see below), whose sum is σ = 181275116400. Its totient is φ = 40443346944.

The previous prime is 87082568327. The next prime is 87082568359. The reversal of 87082568336 is 63386528078.

It can be written as a sum of positive squares in 8 ways, for example, as 5204179600 + 81878388736 = 72140^2 + 286144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499456 + ... + 1556448.

It is an arithmetic number, because the mean of its divisors is an integer number (2265938955).

Almost surely, 287082568336 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 87082568336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90637558200).

87082568336 is an abundant number, since it is smaller than the sum of its proper divisors (94192548064).

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

87082568336 is a wasteful number, since it uses less digits than its factorization.

87082568336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57156 (or 57150 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 87082568336 in words is "eighty-seven billion, eighty-two million, five hundred sixty-eight thousand, three hundred thirty-six".

Divisors: 1 2 4 8 16 29 37 58 74 89 116 148 178 232 296 356 464 592 712 1073 1424 2146 2581 3293 4292 5162 6586 8584 10324 13172 17168 20648 26344 41296 52688 56993 95497 113986 190994 227972 381988 455944 763976 911888 1527952 1652797 2108741 3305594 4217482 5072377 6611188 8434964 10144754 13222376 16869928 20289508 26444752 33739856 40579016 61153489 81158032 122306978 147098933 187677949 244613956 294197866 375355898 489227912 588395732 750711796 978455824 1176791464 1501423592 2353582928 3002847184 5442660521 10885321042 21770642084 43541284168 87082568336