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86547613431 = 3193600742169
BaseRepresentation
bin101000010011010100…
…0111100011011110111
322021101122121022002010
41100212220330123313
52404222142112211
6103432011415303
76152505401406
oct1204650743367
9267348538063
1086547613431
1133782964a54
1214934754533
1382137b69a6
1442905b563d
1523b82274a6
hex1426a3c6f7

86547613431 has 16 divisors (see below), whose sum is σ = 121476588800. Its totient is φ = 54658836288.

The previous prime is 86547613409. The next prime is 86547613433. The reversal of 86547613431 is 13431674568.

It is a happy number.

It is not a de Polignac number, because 86547613431 - 26 = 86547613367 is a prime.

It is a super-2 number, since 2×865476134312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86547613433) 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, 2031315 + ... + 2073483.

It is an arithmetic number, because the mean of its divisors is an integer number (7592286800).

Almost surely, 286547613431 is an apocalyptic number.

86547613431 is a deficient number, since it is larger than the sum of its proper divisors (34928975369).

86547613431 is a wasteful number, since it uses less digits than its factorization.

86547613431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78198.

The product of its digits is 1451520, while the sum is 48.

The spelling of 86547613431 in words is "eighty-six billion, five hundred forty-seven million, six hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 3 19 57 36007 42169 108021 126507 684133 801211 2052399 2403633 1518379183 4555137549 28849204477 86547613431