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86037212881 = 284293026389
BaseRepresentation
bin101000000100000110…
…1111010111011010001
322020002002012021011001
41100020031322323101
52402201011303011
6103305220022001
76134040146224
oct1201015727321
9266062167131
1086037212881
1133540844514
1214811831901
138161b2c929
1442428b35bb
1523885077c1
hex140837aed1

86037212881 has 4 divisors (see below), whose sum is σ = 86040267700. Its totient is φ = 86034158064.

The previous prime is 86037212869. The next prime is 86037212909. The reversal of 86037212881 is 18821273068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60225577281 + 25811635600 = 245409^2 + 160660^2 .

It is a cyclic number.

It is not a de Polignac number, because 86037212881 - 27 = 86037212753 is a prime.

It is a super-2 number, since 2×860372128812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86037212851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484766 + ... + 1541623.

It is an arithmetic number, because the mean of its divisors is an integer number (21510066925).

Almost surely, 286037212881 is an apocalyptic number.

It is an amenable number.

86037212881 is a deficient number, since it is larger than the sum of its proper divisors (3054819).

86037212881 is a wasteful number, since it uses less digits than its factorization.

86037212881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054818.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 86037212881 in words is "eighty-six billion, thirty-seven million, two hundred twelve thousand, eight hundred eighty-one".

Divisors: 1 28429 3026389 86037212881