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860088835081 = 7219789100677
BaseRepresentation
bin11001000010000010100…
…10100001110000001001
310001020001001212211120001
430201001102201300021
5103042430220210311
61455041440403001
7116065542321100
oct14410122416011
93036031784501
10860088835081
113018417a7983
1211a836016461
136314bc3b4a8
142d8b2941037
151758d7414c1
hexc8414a1c09

860088835081 has 12 divisors (see below), whose sum is σ = 1005590251908. Its totient is φ = 733476764832.

The previous prime is 860088835063. The next prime is 860088835139. The reversal of 860088835081 is 180538880068.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 585110255625 + 274978579456 = 764925^2 + 524384^2 .

It is not a de Polignac number, because 860088835081 - 213 = 860088826889 is a prime.

It is a super-2 number, since 2×8600888350812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860088835381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44540686 + ... + 44559991.

It is an arithmetic number, because the mean of its divisors is an integer number (83799187659).

Almost surely, 2860088835081 is an apocalyptic number.

It is an amenable number.

860088835081 is a deficient number, since it is larger than the sum of its proper divisors (145501416827).

860088835081 is a wasteful number, since it uses less digits than its factorization.

860088835081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89100888 (or 89100881 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 860088835081 in words is "eight hundred sixty billion, eighty-eight million, eight hundred thirty-five thousand, eighty-one".

Divisors: 1 7 49 197 1379 9653 89100677 623704739 4365933173 17552833369 122869833583 860088835081