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131434330013 = 718776332859
BaseRepresentation
bin111101001101000011…
…0001011011110011101
3110120020212212202111122
41322122012023132131
54123134142030023
6140214033500325
712332031241340
oct1723206133635
9416225782448
10131434330013
1150817286538
12215811116a5
13c5180b310c
14650bb96457
153643c3a2c8
hex1e9a18b79d

131434330013 has 4 divisors (see below), whose sum is σ = 150210662880. Its totient is φ = 112657997148.

The previous prime is 131434329997. The next prime is 131434330051. The reversal of 131434330013 is 310033434131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310033434131 = 1741178077791.

It is a cyclic number.

It is not a de Polignac number, because 131434330013 - 24 = 131434329997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131434332013) 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, 9388166423 + ... + 9388166436.

It is an arithmetic number, because the mean of its divisors is an integer number (37552665720).

Almost surely, 2131434330013 is an apocalyptic number.

It is an amenable number.

131434330013 is a deficient number, since it is larger than the sum of its proper divisors (18776332867).

131434330013 is an equidigital number, since it uses as much as digits as its factorization.

131434330013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18776332866.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131434330013 its reverse (310033434131), we get a palindrome (441467764144).

The spelling of 131434330013 in words is "one hundred thirty-one billion, four hundred thirty-four million, three hundred thirty thousand, thirteen".

Divisors: 1 7 18776332859 131434330013