Search a number
-
+
131000254311231 = 3231469534961689
BaseRepresentation
bin11101110010010011011111…
…100111111010101100111111
3122011211111112221222001200100
4131302103133213322230333
5114132302010100424411
61142340404103132143
736410312265106614
oct3562233747725477
9564744487861610
10131000254311231
1138816994430998
1212838888144053
13581336a442836
14244c6362c450b
15102293d2e6456
hex7724df9fab3f

131000254311231 has 12 divisors (see below), whose sum is σ = 195326544063040. Its totient is φ = 84516293103840.

The previous prime is 131000254311197. The next prime is 131000254311239. The reversal of 131000254311231 is 132113452000131.

131000254311231 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 0 + 0 + 2 + 543 + 112 + 3 + 1 = 666.

It is not a de Polignac number, because 131000254311231 - 242 = 126602207800127 is a prime.

It is a super-2 number, since 2×1310002543112312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131000254311195 and 131000254311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000254311239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234767480566 + ... + 234767481123.

Almost surely, 2131000254311231 is an apocalyptic number.

131000254311231 is a deficient number, since it is larger than the sum of its proper divisors (64326289751809).

131000254311231 is a wasteful number, since it uses less digits than its factorization.

131000254311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469534961726 (or 469534961723 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 131000254311231 in words is "one hundred thirty-one trillion, two hundred fifty-four million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 3 9 31 93 279 469534961689 1408604885067 4225814655201 14555583812359 43666751437077 131000254311231