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31292082111 = 333049315613
BaseRepresentation
bin11101001001001001…
…110100011110111111
32222202210120110211010
4131021021310132333
51003041233111421
622213025530303
72155306211043
oct351111643677
988683513733
1031292082111
11122a8623494
1260937a3993
132c48c8a124
14172bca8023
15c322a3076
hex7492747bf

31292082111 has 8 divisors (see below), whose sum is σ = 41724170800. Its totient is φ = 20860690752.

The previous prime is 31292082109. The next prime is 31292082179. The reversal of 31292082111 is 11128029213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31292082111 - 21 = 31292082109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31292089111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58660 + ... + 256953.

It is an arithmetic number, because the mean of its divisors is an integer number (5215521350).

Almost surely, 231292082111 is an apocalyptic number.

31292082111 is a deficient number, since it is larger than the sum of its proper divisors (10432088689).

31292082111 is a wasteful number, since it uses less digits than its factorization.

31292082111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348665.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 31292082111 in words is "thirty-one billion, two hundred ninety-two million, eighty-two thousand, one hundred eleven".

Divisors: 1 3 33049 99147 315613 946839 10430694037 31292082111