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87042586 = 260771699
BaseRepresentation
bin1010011000000…
…10101000011010
320001210012222111
411030002220122
5134240330321
612345342534
72104564321
oct514025032
9201705874
1087042586
1145151424
1225197a4a
1315057ab7
14b7bb0b8
1579955e1
hex5302a1a

87042586 has 8 divisors (see below), whose sum is σ = 130780800. Its totient is φ = 43448988.

The previous prime is 87042583. The next prime is 87042617. The reversal of 87042586 is 68524078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (87042583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34636 + ... + 37063.

It is an arithmetic number, because the mean of its divisors is an integer number (16347600).

Almost surely, 287042586 is an apocalyptic number.

87042586 is a deficient number, since it is larger than the sum of its proper divisors (43738214).

87042586 is a wasteful number, since it uses less digits than its factorization.

87042586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72308.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 87042586 is about 9329.6616230172. The cubic root of 87042586 is about 443.1770494541.

The spelling of 87042586 in words is "eighty-seven million, forty-two thousand, five hundred eighty-six".

Divisors: 1 2 607 1214 71699 143398 43521293 87042586