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87042363 = 31719432089
BaseRepresentation
bin1010011000000…
…10100100111011
320001210012200020
411030002210323
5134240323423
612345341523
72104563552
oct514024473
9201705606
1087042363
1145151241
12251978a3
1315057975
14b7bad99
1579954e3
hex530293b

87042363 has 32 divisors (see below), whose sum is σ = 132422400. Its totient is φ = 50512896.

The previous prime is 87042359. The next prime is 87042383. The reversal of 87042363 is 36324078.

It is not a de Polignac number, because 87042363 - 22 = 87042359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87042343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40623 + ... + 42711.

It is an arithmetic number, because the mean of its divisors is an integer number (4138200).

Almost surely, 287042363 is an apocalyptic number.

87042363 is a deficient number, since it is larger than the sum of its proper divisors (45380037).

87042363 is a wasteful number, since it uses less digits than its factorization.

87042363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 87042363 is about 9329.6496718794. The cubic root of 87042363 is about 443.1766709858.

The spelling of 87042363 in words is "eighty-seven million, forty-two thousand, three hundred sixty-three".

Divisors: 1 3 17 19 43 51 57 129 323 731 817 969 2089 2193 2451 6267 13889 35513 39691 41667 89827 106539 119073 269481 674747 1527059 1706713 2024241 4581177 5120139 29014121 87042363