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131224553204 = 2290736169943
BaseRepresentation
bin111101000110110010…
…1111100011011110100
3110112201021010222211012
41322031211330123310
54122221441200304
6140141141331352
712323603204213
oct1721545743364
9415637128735
10131224553204
1150719926078
1221522a06b58
13c4b37b4a24
1464cbd8b07a
1536305ee16e
hex1e8d97c6f4

131224553204 has 12 divisors (see below), whose sum is σ = 229896164064. Its totient is φ = 65539934904.

The previous prime is 131224553203. The next prime is 131224553249. The reversal of 131224553204 is 402355422131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131224553203) 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, 18081344 + ... + 18088599.

It is an arithmetic number, because the mean of its divisors is an integer number (19158013672).

Almost surely, 2131224553204 is an apocalyptic number.

It is an amenable number.

131224553204 is a deficient number, since it is larger than the sum of its proper divisors (98671610860).

131224553204 is a wasteful number, since it uses less digits than its factorization.

131224553204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36170854 (or 36170852 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 131224553204 its reverse (402355422131), we get a palindrome (533579975335).

The spelling of 131224553204 in words is "one hundred thirty-one billion, two hundred twenty-four million, five hundred fifty-three thousand, two hundred four".

Divisors: 1 2 4 907 1814 3628 36169943 72339886 144679772 32806138301 65612276602 131224553204