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86020187 = 1117617541
BaseRepresentation
bin1010010000010…
…01000001011011
312222212021111212
411020021001123
5134010121222
612311413335
72063105501
oct510110133
9188767455
1086020187
1144613270
122498424b
1314a8a626
14b5d2671
1578426e2
hex520905b

86020187 has 16 divisors (see below), whose sum is σ = 101002464. Its totient is φ = 72384000.

The previous prime is 86020183. The next prime is 86020211. The reversal of 86020187 is 78102068.

It is a cyclic number.

It is not a de Polignac number, because 86020187 - 22 = 86020183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86020183) 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, 7637 + ... + 15177.

It is an arithmetic number, because the mean of its divisors is an integer number (6312654).

Almost surely, 286020187 is an apocalyptic number.

86020187 is a deficient number, since it is larger than the sum of its proper divisors (14982277).

86020187 is a wasteful number, since it uses less digits than its factorization.

86020187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 86020187 is about 9274.7068417282. The cubic root of 86020187 is about 441.4350305648.

The spelling of 86020187 in words is "eighty-six million, twenty thousand, one hundred eighty-seven".

Divisors: 1 11 17 61 187 671 1037 7541 11407 82951 128197 460001 1410167 5060011 7820017 86020187