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87483968 = 261131379
BaseRepresentation
bin1010011011011…
…10011001000000
320002121122102222
411031232121000
5134343441333
612403030212
72111413205
oct515563100
9202548388
1087483968
1145423000
122536b368
1315180980
14b893cac
157a31298
hex536e640

87483968 has 112 divisors (see below), whose sum is σ = 208239360. Its totient is φ = 36241920.

The previous prime is 87483941. The next prime is 87483983. The reversal of 87483968 is 86938478.

It is a happy number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 87483968 = 1323 + 4403 = 3413 + 3633.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107353 + ... + 1107431.

It is an arithmetic number, because the mean of its divisors is an integer number (1859280).

Almost surely, 287483968 is an apocalyptic number.

87483968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87483968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104119680).

87483968 is an abundant number, since it is smaller than the sum of its proper divisors (120755392).

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

87483968 is a wasteful number, since it uses less digits than its factorization.

87483968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 105 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The square root of 87483968 is about 9353.2864812321. The cubic root of 87483968 is about 443.9248851638.

Subtracting from 87483968 its reverse (86938478), we obtain a triangular number (545490 = T1044).

The spelling of 87483968 in words is "eighty-seven million, four hundred eighty-three thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 13 16 22 26 32 44 52 64 79 88 104 121 143 158 176 208 242 286 316 352 416 484 572 632 704 832 869 968 1027 1144 1264 1331 1573 1738 1936 2054 2288 2528 2662 3146 3476 3872 4108 4576 5056 5324 6292 6952 7744 8216 9152 9559 10648 11297 12584 13904 16432 17303 19118 21296 22594 25168 27808 32864 34606 38236 42592 45188 50336 55616 65728 69212 76472 85184 90376 100672 105149 124267 138424 152944 180752 210298 248534 276848 305888 361504 420596 497068 553696 611776 723008 841192 994136 1107392 1366937 1682384 1988272 2733874 3364768 3976544 5467748 6729536 7953088 10935496 21870992 43741984 87483968