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92161235431 = 175421249143
BaseRepresentation
bin101010111010100111…
…1001101100111100111
322210212212121211210001
41111311033031213213
53002221234013211
6110201023042131
76441561401326
oct1256517154747
9283785554701
1092161235431
11360a3684281
1215a40740347
1388c9800505
144663d680bd
1525e5e8cac1
hex15753cd9e7

92161235431 has 4 divisors (see below), whose sum is σ = 97582484592. Its totient is φ = 86739986272.

The previous prime is 92161235429. The next prime is 92161235447. The reversal of 92161235431 is 13453216129.

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

It is a cyclic number.

It is not a de Polignac number, because 92161235431 - 21 = 92161235429 is a prime.

It is a super-2 number, since 2×921612354312 (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 (92161235401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710624555 + ... + 2710624588.

It is an arithmetic number, because the mean of its divisors is an integer number (24395621148).

Almost surely, 292161235431 is an apocalyptic number.

92161235431 is a deficient number, since it is larger than the sum of its proper divisors (5421249161).

92161235431 is a wasteful number, since it uses less digits than its factorization.

92161235431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421249160.

The product of its digits is 38880, while the sum is 37.

The spelling of 92161235431 in words is "ninety-two billion, one hundred sixty-one million, two hundred thirty-five thousand, four hundred thirty-one".

Divisors: 1 17 5421249143 92161235431