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92131213129 = 101912190229
BaseRepresentation
bin101010111001101110…
…0101011111101001001
322210210210010112220221
41111303130223331021
53002141042310004
6110154031350041
76441045250624
oct1256334537511
9283723115827
1092131213129
113608873905a
1215a32682321
1388c351b337
14465dd90dbb
1525e350c354
hex157372bf49

92131213129 has 4 divisors (see below), whose sum is σ = 93043403460. Its totient is φ = 91219022800.

The previous prime is 92131213081. The next prime is 92131213133.

92131213129 is nontrivially palindromic in base 10.

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 87143040000 + 4988173129 = 295200^2 + 70627^2 .

It is a cyclic number.

It is not a de Polignac number, because 92131213129 - 27 = 92131213001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 92131213094 and 92131213103.

It is not an unprimeable number, because it can be changed into a prime (92131213169) 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, 456095014 + ... + 456095215.

It is an arithmetic number, because the mean of its divisors is an integer number (23260850865).

Almost surely, 292131213129 is an apocalyptic number.

It is an amenable number.

92131213129 is a deficient number, since it is larger than the sum of its proper divisors (912190331).

92131213129 is a wasteful number, since it uses less digits than its factorization.

92131213129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912190330.

The product of its digits is 5832, while the sum is 34.

The spelling of 92131213129 in words is "ninety-two billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-nine".

Divisors: 1 101 912190229 92131213129