Search a number
-
+
31231313826104 = 237557702032609
BaseRepresentation
bin1110001100111100110110…
…10111011101000100111000
311002120200110221220001102202
413012132123113131010320
513043143212314413404
6150231244551445332
76402250033255010
oct706363327350470
9132520427801382
1031231313826104
119a51142502177
123604a07986848
13145713c358232
1479d8645dcc40
153925e8b1021e
hex1c679b5dd138

31231313826104 has 16 divisors (see below), whose sum is σ = 66924243913200. Its totient is φ = 13384848782592.

The previous prime is 31231313826101. The next prime is 31231313826127. The reversal of 31231313826104 is 40162831313213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231313826101) 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, 278851016249 + ... + 278851016360.

It is an arithmetic number, because the mean of its divisors is an integer number (4182765244575).

Almost surely, 231231313826104 is an apocalyptic number.

It is an amenable number.

31231313826104 is an abundant number, since it is smaller than the sum of its proper divisors (35692930087096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31231313826104 is a wasteful number, since it uses less digits than its factorization.

31231313826104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557702032622 (or 557702032618 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 31231313826104 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred thirteen million, eight hundred twenty-six thousand, one hundred four".

Divisors: 1 2 4 7 8 14 28 56 557702032609 1115404065218 2230808130436 3903914228263 4461616260872 7807828456526 15615656913052 31231313826104