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131376420751 = 891476139559
BaseRepresentation
bin111101001011010100…
…1010001011110001111
3110120002211220122221011
41322112221101132033
54123024330431001
6140204204350051
712330426102562
oct1722651213617
9416084818834
10131376420751
1150797623444
1221565845327
13c5090b8994
1465042004d9
15363daebd51
hex1e96a5178f

131376420751 has 4 divisors (see below), whose sum is σ = 132852560400. Its totient is φ = 129900281104.

The previous prime is 131376420719. The next prime is 131376420761. The reversal of 131376420751 is 157024673131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131376420751 - 25 = 131376420719 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 (131376420761) 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, 738069691 + ... + 738069868.

It is an arithmetic number, because the mean of its divisors is an integer number (33213140100).

Almost surely, 2131376420751 is an apocalyptic number.

131376420751 is a deficient number, since it is larger than the sum of its proper divisors (1476139649).

131376420751 is an equidigital number, since it uses as much as digits as its factorization.

131376420751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476139648.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 131376420751 in words is "one hundred thirty-one billion, three hundred seventy-six million, four hundred twenty thousand, seven hundred fifty-one".

Divisors: 1 89 1476139559 131376420751