Search a number
-
+
31230122332 = 22101113684091
BaseRepresentation
bin11101000101011101…
…011101100101011100
32222121110222120222111
4131011131131211130
51002424402403312
622202533523404
72153624442223
oct350535354534
988543876874
1031230122332
1112276654162
126076aa3564
132c391a5136
141723979cba
15c2bb148a7
hex74575d95c

31230122332 has 24 divisors (see below), whose sum is σ = 55682352432. Its totient is φ = 15323616000.

The previous prime is 31230122311. The next prime is 31230122377. The reversal of 31230122332 is 23322103213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296394 + ... + 387697.

It is an arithmetic number, because the mean of its divisors is an integer number (2320098018).

Almost surely, 231230122332 is an apocalyptic number.

It is an amenable number.

31230122332 is a deficient number, since it is larger than the sum of its proper divisors (24452230100).

31230122332 is a wasteful number, since it uses less digits than its factorization.

31230122332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684309 (or 684307 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31230122332 its reverse (23322103213), we get a palindrome (54552225545).

The spelling of 31230122332 in words is "thirty-one billion, two hundred thirty million, one hundred twenty-two thousand, three hundred thirty-two".

Divisors: 1 2 4 101 113 202 226 404 452 11413 22826 45652 684091 1368182 2736364 69093191 77302283 138186382 154604566 276372764 309209132 7807530583 15615061166 31230122332