Search a number
-
+
31255230312123 = 3292291568801401
BaseRepresentation
bin1110001101101001011001…
…11001100110111010111011
311002122222012201222102111020
413012310230321212322323
513044041202424441443
6150250242105033523
76404054513115336
oct706645471467273
9132588181872436
1031255230312123
119a602a57640a4
1236095814858a3
1314594812638cc
147a0a92ad961d
15393048606583
hex1c6d2ce66ebb

31255230312123 has 16 divisors (see below), whose sum is σ = 43298918695200. Its totient is φ = 20030456275200.

The previous prime is 31255230312083. The next prime is 31255230312161. The reversal of 31255230312123 is 32121303255213.

It is not a de Polignac number, because 31255230312123 - 29 = 31255230311611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31255230312323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784380778 + ... + 784420623.

It is an arithmetic number, because the mean of its divisors is an integer number (2706182418450).

Almost surely, 231255230312123 is an apocalyptic number.

31255230312123 is a deficient number, since it is larger than the sum of its proper divisors (12043688383077).

31255230312123 is a wasteful number, since it uses less digits than its factorization.

31255230312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568801662.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 31255230312123 its reverse (32121303255213), we get a palindrome (63376533567336).

The spelling of 31255230312123 in words is "thirty-one trillion, two hundred fifty-five billion, two hundred thirty million, three hundred twelve thousand, one hundred twenty-three".

Divisors: 1 3 29 87 229 687 6641 19923 1568801401 4706404203 45495240629 136485721887 359255520829 1077766562487 10418410104041 31255230312123