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87298263 = 33133171113
BaseRepresentation
bin1010011010000…
…01000011010111
320002021012201000
411031001003113
5134322021023
612355034343
72110010613
oct515010327
9202235630
1087298263
1145306528
122529b9b3
13151172a0
14b846343
1579e6243
hex53410d7

87298263 has 64 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 50803200.

The previous prime is 87298249. The next prime is 87298273. The reversal of 87298263 is 36289278.

It is not a de Polignac number, because 87298263 - 210 = 87297239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87298243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 772495 + ... + 772607.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 287298263 is an apocalyptic number.

87298263 is a deficient number, since it is larger than the sum of its proper divisors (59789097).

87298263 is a wasteful number, since it uses less digits than its factorization.

87298263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 87298263 is about 9343.3539481280. The cubic root of 87298263 is about 443.6105514880.

The spelling of 87298263 in words is "eighty-seven million, two hundred ninety-eight thousand, two hundred sixty-three".

Divisors: 1 3 9 13 27 31 39 71 93 113 117 213 279 339 351 403 639 837 923 1017 1209 1469 1917 2201 2769 3051 3503 3627 4407 6603 8023 8307 10509 10881 13221 19809 24069 24921 28613 31527 39663 45539 59427 72207 85839 94581 104299 136617 216621 248713 257517 312897 409851 746139 772551 938691 1229553 2238417 2816073 3233269 6715251 9699807 29099421 87298263