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86242915 = 5111568053
BaseRepresentation
bin1010010001111…
…11011001100011
320000021121001001
411020333121203
5134034233130
612320252431
72065024033
oct510773143
9200247031
1086242915
1144755640
1224a71117
1314b37b15
14b64d8c3
1578886ca
hex523f663

86242915 has 8 divisors (see below), whose sum is σ = 112899888. Its totient is φ = 62722080.

The previous prime is 86242913. The next prime is 86242943. The reversal of 86242915 is 51924268.

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

It is not a de Polignac number, because 86242915 - 21 = 86242913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86242913) 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, 783972 + ... + 784081.

It is an arithmetic number, because the mean of its divisors is an integer number (14112486).

Almost surely, 286242915 is an apocalyptic number.

86242915 is a deficient number, since it is larger than the sum of its proper divisors (26656973).

86242915 is a wasteful number, since it uses less digits than its factorization.

86242915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568069.

The product of its digits is 34560, while the sum is 37.

The square root of 86242915 is about 9286.7063590920. The cubic root of 86242915 is about 441.8156978181.

The spelling of 86242915 in words is "eighty-six million, two hundred forty-two thousand, nine hundred fifteen".

Divisors: 1 5 11 55 1568053 7840265 17248583 86242915