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31792091092 = 2256571404989
BaseRepresentation
bin11101100110111101…
…001100111111010100
310001001122102120012021
4131212331030333110
51010102233403332
622334410502524
72203560213136
oct354675147724
9101048376167
1031792091092
1112534896653
1261b3134a44
132cc8746328
141778463056
15c6111dc97
hex766f4cfd4

31792091092 has 12 divisors (see below), whose sum is σ = 55646033940. Its totient is φ = 15893224256.

The previous prime is 31792091077. The next prime is 31792091099. The reversal of 31792091092 is 29019029713.

It can be written as a sum of positive squares in 2 ways, for example, as 5991379216 + 25800711876 = 77404^2 + 160626^2 .

It is a super-3 number, since 3×317920910923 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31792091099) 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, 679867 + ... + 725122.

It is an arithmetic number, because the mean of its divisors is an integer number (4637169495).

Almost surely, 231792091092 is an apocalyptic number.

It is an amenable number.

31792091092 is a deficient number, since it is larger than the sum of its proper divisors (23853942848).

31792091092 is a wasteful number, since it uses less digits than its factorization.

31792091092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410650 (or 1410648 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 31792091092 in words is "thirty-one billion, seven hundred ninety-two million, ninety-one thousand, ninety-two".

Divisors: 1 2 4 5657 11314 22628 1404989 2809978 5619956 7948022773 15896045546 31792091092