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8131437640601 = 111071169015181
BaseRepresentation
bin111011001010011111101…
…1100111011101110011001
31001210100122212111100122022
41312110333130323232121
52031211141013444401
625143310400504225
71466322414346502
oct166247734735631
931710585440568
108131437640601
11265558361aaa0
12ab3b1601b075
1346ca395960b2
142017c6a57ba9
15e17b610671b
hex7653f73bb99

8131437640601 has 8 divisors (see below), whose sum is σ = 8871487555008. Its totient is φ = 7391525778000.

The previous prime is 8131437640591. The next prime is 8131437640607. The reversal of 8131437640601 is 1060467341318.

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 8131437640601 - 26 = 8131437640537 is a prime.

It is a super-2 number, since 2×81314376406012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8131437640607) 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, 34389770 + ... + 34625411.

It is an arithmetic number, because the mean of its divisors is an integer number (1108935944376).

Almost surely, 28131437640601 is an apocalyptic number.

It is an amenable number.

8131437640601 is a deficient number, since it is larger than the sum of its proper divisors (740049914407).

8131437640601 is a wasteful number, since it uses less digits than its factorization.

8131437640601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69025903.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 8131437640601 in words is "eight trillion, one hundred thirty-one billion, four hundred thirty-seven million, six hundred forty thousand, six hundred one".

Divisors: 1 11 10711 117821 69015181 759166991 739221603691 8131437640601