Search a number
-
+
131407842788 = 22191729050563
BaseRepresentation
bin111101001100010000…
…1001000110111100100
3110120012001001001212022
41322120201020313210
54123110401432123
6140211250042312
712331260143165
oct1723041106744
9416161031768
10131407842788
1150803335272
1221574279398
13c51276acc1
14650845d76c
1536417571c8
hex1e98848de4

131407842788 has 12 divisors (see below), whose sum is σ = 242067078960. Its totient is φ = 62245820232.

The previous prime is 131407842773. The next prime is 131407842809. The reversal of 131407842788 is 887248704131.

It is a super-2 number, since 2×1314078427882 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864525206 + ... + 864525357.

It is an arithmetic number, because the mean of its divisors is an integer number (20172256580).

Almost surely, 2131407842788 is an apocalyptic number.

It is an amenable number.

131407842788 is a deficient number, since it is larger than the sum of its proper divisors (110659236172).

131407842788 is a wasteful number, since it uses less digits than its factorization.

131407842788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729050586 (or 1729050584 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 131407842788 in words is "one hundred thirty-one billion, four hundred seven million, eight hundred forty-two thousand, seven hundred eighty-eight".

Divisors: 1 2 4 19 38 76 1729050563 3458101126 6916202252 32851960697 65703921394 131407842788