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86895275690 = 25197433101869
BaseRepresentation
bin101000011101101011…
…1001010111010101010
322022021212210101001002
41100323113022322222
52410430142310230
6103530311155002
76164226441116
oct1207327127252
9268255711032
1086895275690
1133941132833
1214a11075a62
13826a831ac2
1442c4834746
1523d89ed545
hex143b5caeaa

86895275690 has 32 divisors (see below), whose sum is σ = 157570071120. Its totient is φ = 34501469184.

The previous prime is 86895275683. The next prime is 86895275699. The reversal of 86895275690 is 9657259868.

It can be written as a sum of positive squares in 8 ways, for example, as 33865936729 + 53029338961 = 184027^2 + 230281^2 .

It is a super-2 number, since 2×868952756902 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86895275699) 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, 802076 + ... + 903944.

Almost surely, 286895275690 is an apocalyptic number.

86895275690 is a deficient number, since it is larger than the sum of its proper divisors (70674795430).

86895275690 is a wasteful number, since it uses less digits than its factorization.

86895275690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102506.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 86895275690 in words is "eighty-six billion, eight hundred ninety-five million, two hundred seventy-five thousand, six hundred ninety".

Divisors: 1 2 5 10 197 394 433 866 985 1970 2165 4330 85301 101869 170602 203738 426505 509345 853010 1018690 20068193 40136386 44109277 88218554 100340965 200681930 220546385 441092770 8689527569 17379055138 43447637845 86895275690