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131440407313 = 4120031600531
BaseRepresentation
bin111101001101001110…
…1010111001100010001
3110120021022022111222211
41322122131113030101
54123142221013223
6140214412032121
712332134012405
oct1723235271421
9416238274884
10131440407313
115081a7574a6
1221583162641
13c519430357
14650c8d9105
15364453ad0d
hex1e9a757311

131440407313 has 8 divisors (see below), whose sum is σ = 134713577376. Its totient is φ = 128170442400.

The previous prime is 131440407281. The next prime is 131440407349. The reversal of 131440407313 is 313704044131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131440407313 - 25 = 131440407281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440407013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718143 + ... + 882388.

It is an arithmetic number, because the mean of its divisors is an integer number (16839197172).

Almost surely, 2131440407313 is an apocalyptic number.

It is an amenable number.

131440407313 is a deficient number, since it is larger than the sum of its proper divisors (3273170063).

131440407313 is a wasteful number, since it uses less digits than its factorization.

131440407313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602575.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 131440407313 in words is "one hundred thirty-one billion, four hundred forty million, four hundred seven thousand, three hundred thirteen".

Divisors: 1 41 2003 82123 1600531 65621771 3205863593 131440407313