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131441470499 = 421312212519
BaseRepresentation
bin111101001101010000…
…1011010110000100011
3110120021101022112102002
41322122201122300203
54123143004023444
6140214450514215
712332146031153
oct1723241326043
9416241275362
10131441470499
1150820313269
122158359596b
13c519713261
14650cad4763
15364469ad4e
hex1e9a85ac23

131441470499 has 4 divisors (see below), whose sum is σ = 131753683440. Its totient is φ = 131129257560.

The previous prime is 131441470493. The next prime is 131441470561. The reversal of 131441470499 is 994074144131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994074144131 = 5318756115927.

It is a cyclic number.

It is not a de Polignac number, because 131441470499 - 24 = 131441470483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131441470493) 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, 156105839 + ... + 156106680.

It is an arithmetic number, because the mean of its divisors is an integer number (32938420860).

Almost surely, 2131441470499 is an apocalyptic number.

131441470499 is a deficient number, since it is larger than the sum of its proper divisors (312212941).

131441470499 is an equidigital number, since it uses as much as digits as its factorization.

131441470499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312212940.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 131441470499 in words is "one hundred thirty-one billion, four hundred forty-one million, four hundred seventy thousand, four hundred ninety-nine".

Divisors: 1 421 312212519 131441470499