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131045304413 = 235697621931
BaseRepresentation
bin111101000001011101…
…0001010100001011101
3110112020202212012201002
41322002322022201131
54121340044220123
6140111255400045
712316265465042
oct1720272124135
9415222765632
10131045304413
1150637726881
1221492983025
13c485614a5a
1464b224b1c9
15361e9e3528
hex1e82e8a85d

131045304413 has 4 divisors (see below), whose sum is σ = 136742926368. Its totient is φ = 125347682460.

The previous prime is 131045304349. The next prime is 131045304433. The reversal of 131045304413 is 314403540131.

It is a happy number.

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: 314403540131 = 361786923843.

It is a cyclic number.

It is not a de Polignac number, because 131045304413 - 26 = 131045304349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045304433) 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, 2848810943 + ... + 2848810988.

It is an arithmetic number, because the mean of its divisors is an integer number (34185731592).

Almost surely, 2131045304413 is an apocalyptic number.

It is an amenable number.

131045304413 is a deficient number, since it is larger than the sum of its proper divisors (5697621955).

131045304413 is an equidigital number, since it uses as much as digits as its factorization.

131045304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697621954.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 131045304413 its reverse (314403540131), we get a palindrome (445448844544).

The spelling of 131045304413 in words is "one hundred thirty-one billion, forty-five million, three hundred four thousand, four hundred thirteen".

Divisors: 1 23 5697621931 131045304413