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85940899 = 11173712421
BaseRepresentation
bin1010001111101…
…01101010100011
312222201020202021
411013311222203
5134000102044
612310002311
72062325362
oct507655243
9188636667
1085940899
1144569740
1224946397
1314a60505
14b5b17d9
157828e84
hex51f5aa3

85940899 has 16 divisors (see below), whose sum is σ = 101959776. Its totient is φ = 71539200.

The previous prime is 85940873. The next prime is 85940917. The reversal of 85940899 is 99804958.

It is a cyclic number.

It is not a de Polignac number, because 85940899 - 215 = 85908131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85940999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 13129.

It is an arithmetic number, because the mean of its divisors is an integer number (6372486).

Almost surely, 285940899 is an apocalyptic number.

85940899 is a deficient number, since it is larger than the sum of its proper divisors (16018877).

85940899 is a wasteful number, since it uses less digits than its factorization.

85940899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12486.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 85940899 is about 9270.4314354835. The cubic root of 85940899 is about 441.2993598531.

The spelling of 85940899 in words is "eighty-five million, nine hundred forty thousand, eight hundred ninety-nine".

Divisors: 1 11 17 37 187 407 629 6919 12421 136631 211157 459577 2322727 5055347 7812809 85940899