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87406117 = 2113791093
BaseRepresentation
bin1010011010110…
…11011000100101
320002110200122121
411031123120211
5134333443432
612401225541
72110640221
oct515333045
9202420577
1087406117
114537a567
12253322b1
13151543c6
14b873781
157a18197
hex535b625

87406117 has 8 divisors (see below), whose sum is σ = 88132640. Its totient is φ = 86682960.

The previous prime is 87406103. The next prime is 87406159. The reversal of 87406117 is 71160478.

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

It is a cyclic number.

It is not a de Polignac number, because 87406117 - 211 = 87404069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87409117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79423 + ... + 80515.

It is an arithmetic number, because the mean of its divisors is an integer number (11016580).

Almost surely, 287406117 is an apocalyptic number.

It is an amenable number.

87406117 is a deficient number, since it is larger than the sum of its proper divisors (726523).

87406117 is a wasteful number, since it uses less digits than its factorization.

87406117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 87406117 is about 9349.1238626943. The cubic root of 87406117 is about 443.7931648284.

The spelling of 87406117 in words is "eighty-seven million, four hundred six thousand, one hundred seventeen".

Divisors: 1 211 379 1093 79969 230623 414247 87406117