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87431014 = 21119120807
BaseRepresentation
bin1010011011000…
…01011101100110
320002111221210201
411031201131212
5134340243024
612401541114
72111102626
oct515413546
9202457721
1087431014
1145397240
122534479a
1315162838
14b87c886
157a20744
hex5361766

87431014 has 16 divisors (see below), whose sum is σ = 143824896. Its totient is φ = 39531400.

The previous prime is 87430999. The next prime is 87431021. The reversal of 87431014 is 41013478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6202 + ... + 14605.

It is an arithmetic number, because the mean of its divisors is an integer number (8989056).

Almost surely, 287431014 is an apocalyptic number.

87431014 is a deficient number, since it is larger than the sum of its proper divisors (56393882).

87431014 is a wasteful number, since it uses less digits than its factorization.

87431014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21011.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 87431014 is about 9350.4552830330. The cubic root of 87431014 is about 443.8352979189.

The spelling of 87431014 in words is "eighty-seven million, four hundred thirty-one thousand, fourteen".

Divisors: 1 2 11 22 191 382 2101 4202 20807 41614 228877 457754 3974137 7948274 43715507 87431014