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131202313443 = 3215196543277
BaseRepresentation
bin111101000110001000…
…1000110110011100011
3110112122201022002121100
41322030101012303203
54122200243012233
6140135024525443
712323213156235
oct1721421066343
9415581262540
10131202313443
1150708316003
1221517480883
13c4abcc8cc6
1464c903c255
15362d6a9813
hex1e8c446ce3

131202313443 has 12 divisors (see below), whose sum is σ = 190769517328. Its totient is φ = 86888948400.

The previous prime is 131202313399. The next prime is 131202313457. The reversal of 131202313443 is 344313202131.

It is a happy number.

131202313443 is a `hidden beast` number, since 1 + 3 + 1 + 202 + 3 + 13 + 443 = 666.

It is not a de Polignac number, because 131202313443 - 212 = 131202309347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131202314443) 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, 48270280 + ... + 48272997.

Almost surely, 2131202313443 is an apocalyptic number.

131202313443 is a deficient number, since it is larger than the sum of its proper divisors (59567203885).

131202313443 is a wasteful number, since it uses less digits than its factorization.

131202313443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96543434 (or 96543431 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131202313443 its reverse (344313202131), we get a palindrome (475515515574).

The spelling of 131202313443 in words is "one hundred thirty-one billion, two hundred two million, three hundred thirteen thousand, four hundred forty-three".

Divisors: 1 3 9 151 453 1359 96543277 289629831 868889493 14578034827 43734104481 131202313443