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88992120131 = 558115945551
BaseRepresentation
bin101001011100001010…
…1111111110101000011
322111201000101002212022
41102320111333311003
52424223440321011
6104514333552055
76300210353165
oct1227025776503
9274630332768
1088992120131
1134817806022
12152b734562b
138513086565
1444430dc935
1524acb408db
hex14b857fd43

88992120131 has 4 divisors (see below), whose sum is σ = 89008071264. Its totient is φ = 88976169000.

The previous prime is 88992120109. The next prime is 88992120179. The reversal of 88992120131 is 13102129988.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88992120131 is a prime.

It is a super-2 number, since 2×889921201312 (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 (88992120031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7967195 + ... + 7978356.

It is an arithmetic number, because the mean of its divisors is an integer number (22252017816).

Almost surely, 288992120131 is an apocalyptic number.

88992120131 is a deficient number, since it is larger than the sum of its proper divisors (15951133).

88992120131 is a wasteful number, since it uses less digits than its factorization.

88992120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15951132.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 88992120131 in words is "eighty-eight billion, nine hundred ninety-two million, one hundred twenty thousand, one hundred thirty-one".

Divisors: 1 5581 15945551 88992120131