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131242270774517 = 788121281380051
BaseRepresentation
bin11101110101110100111000…
…111011011101010011110101
3122012200122020111122020021122
4131311310320323131103311
5114200233132304241032
61143043511123553325
736433640550105260
oct3565647073352365
9565618214566248
10131242270774517
11388aa597411911
121287776ab2b845
135830129503cb6
14245a2346b5cd7
151028da52b8012
hex775d38edd4f5

131242270774517 has 8 divisors (see below), whose sum is σ = 150161417646912. Its totient is φ = 112365686664000.

The previous prime is 131242270774499. The next prime is 131242270774523. The reversal of 131242270774517 is 715477072242131.

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

It is not a de Polignac number, because 131242270774517 - 222 = 131242266580213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131242270374517) 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, 10640683859 + ... + 10640696192.

It is an arithmetic number, because the mean of its divisors is an integer number (18770177205864).

Almost surely, 2131242270774517 is an apocalyptic number.

It is an amenable number.

131242270774517 is a deficient number, since it is larger than the sum of its proper divisors (18919146872395).

131242270774517 is an equidigital number, since it uses as much as digits as its factorization.

131242270774517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281380939.

The product of its (nonzero) digits is 4609920, while the sum is 53.

The spelling of 131242270774517 in words is "one hundred thirty-one trillion, two hundred forty-two billion, two hundred seventy million, seven hundred seventy-four thousand, five hundred seventeen".

Divisors: 1 7 881 6167 21281380051 148969660357 18748895824931 131242270774517