Search a number
-
+
31325131250255 = 5193178511818457
BaseRepresentation
bin1110001111101011100110…
…10100100001101001001111
311002220122122020221000000202
413013311303110201221033
513101212332100002010
6150342322220444115
76412110645231023
oct707656324415117
9132818566830022
1031325131250255
119a87a05a45557
12361b02b0a963b
131462c4100576b
147a42044c6383
15394c8a19a6a5
hex1c7d73521a4f

31325131250255 has 16 divisors (see below), whose sum is σ = 37787062619424. Its totient is φ = 24928849612800.

The previous prime is 31325131250251. The next prime is 31325131250261. The reversal of 31325131250255 is 55205213152313.

It is not a de Polignac number, because 31325131250255 - 22 = 31325131250251 is a prime.

It is a super-3 number, since 3×313251312502553 (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31325131250251) 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, 16316987 + ... + 18135443.

It is an arithmetic number, because the mean of its divisors is an integer number (2361691413714).

Almost surely, 231325131250255 is an apocalyptic number.

31325131250255 is a deficient number, since it is larger than the sum of its proper divisors (6461931369169).

31325131250255 is a wasteful number, since it uses less digits than its factorization.

31325131250255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836506.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 31325131250255 in words is "thirty-one trillion, three hundred twenty-five billion, one hundred thirty-one million, two hundred fifty thousand, two hundred fifty-five".

Divisors: 1 5 193 965 17851 89255 1818457 3445243 9092285 17226215 350962201 1754811005 32461275907 162306379535 6265026250051 31325131250255