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86210013 = 3127353641
BaseRepresentation
bin1010010001101…
…11010111011101
320000012220220110
411020313113131
5134032210023
612315440233
72064526101
oct510672735
9200186813
1086210013
114473294a
1224a56079
1314b25b56
14b641901
15787da93
hex52375dd

86210013 has 16 divisors (see below), whose sum is σ = 116361216. Its totient is φ = 56770560.

The previous prime is 86209997. The next prime is 86210017. The reversal of 86210013 is 31001268.

It is not a de Polignac number, because 86210013 - 24 = 86209997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86210017) 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, 134173 + ... + 134813.

It is an arithmetic number, because the mean of its divisors is an integer number (7272576).

Almost surely, 286210013 is an apocalyptic number.

It is an amenable number.

86210013 is a deficient number, since it is larger than the sum of its proper divisors (30151203).

86210013 is a wasteful number, since it uses less digits than its factorization.

86210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 86210013 is about 9284.9347332116. The cubic root of 86210013 is about 441.7595058822.

The spelling of 86210013 in words is "eighty-six million, two hundred ten thousand, thirteen".

Divisors: 1 3 127 353 381 641 1059 1923 44831 81407 134493 226273 244221 678819 28736671 86210013