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86245391 = 292102551
BaseRepresentation
bin1010010010000…
…00000000001111
320000021201102202
411021000000033
5134034323031
612320312115
72065034201
oct511000017
9200251382
1086245391
1144757491
1224a7263b
1314b38c9b
14b650771
1578892cb
hex524000f

86245391 has 6 divisors (see below), whose sum is σ = 89322792. Its totient is φ = 83270600.

The previous prime is 86245381. The next prime is 86245417. The reversal of 86245391 is 19354268.

It is a happy number.

It is not a de Polignac number, because 86245391 - 214 = 86229007 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 (86245381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50435 + ... + 52116.

It is an arithmetic number, because the mean of its divisors is an integer number (14887132).

Almost surely, 286245391 is an apocalyptic number.

86245391 is a deficient number, since it is larger than the sum of its proper divisors (3077401).

86245391 is a wasteful number, since it uses less digits than its factorization.

86245391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102609 (or 102580 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 86245391 is about 9286.8396669696. The cubic root of 86245391 is about 441.8199258957.

The spelling of 86245391 in words is "eighty-six million, two hundred forty-five thousand, three hundred ninety-one".

Divisors: 1 29 841 102551 2973979 86245391