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87040361 = 1794331123
BaseRepresentation
bin1010011000000…
…10000101101001
320001210002221002
411030002011221
5134240242421
612345324345
72104554662
oct514020551
9201702832
1087040361
114514a791
12251966b5
1315056a95
14b7ba369
157994b0b
hex5302169

87040361 has 8 divisors (see below), whose sum is σ = 87806880. Its totient is φ = 86277312.

The previous prime is 87040337. The next prime is 87040367. The reversal of 87040361 is 16304078.

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 87040361 - 26 = 87040297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87040367) 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, 76946 + ... + 78068.

It is an arithmetic number, because the mean of its divisors is an integer number (10975860).

Almost surely, 287040361 is an apocalyptic number.

It is an amenable number.

87040361 is a deficient number, since it is larger than the sum of its proper divisors (766519).

87040361 is a wasteful number, since it uses less digits than its factorization.

87040361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 87040361 is about 9329.5423789166. The cubic root of 87040361 is about 443.1732732284.

The spelling of 87040361 in words is "eighty-seven million, forty thousand, three hundred sixty-one".

Divisors: 1 179 433 1123 77507 201017 486259 87040361