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13520809425601 = 371842111983743
BaseRepresentation
bin1100010011000000111100…
…0010101111101011000001
31202212120120110022120221201
43010300033002233223001
53233011104203104401
644431212450021201
72563563155566252
oct304601702575301
952776513276851
1013520809425601
114343163485695
12162450b877801
137710120b3c7a
1434a5a6c30b29
15186a92120b01
hexc4c0f0afac1

13520809425601 has 8 divisors (see below), whose sum is σ = 13886319089664. Its totient is φ = 13155304097520.

The previous prime is 13520809425503. The next prime is 13520809425637. The reversal of 13520809425601 is 10652490802531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13520809425601 is a prime.

It is a super-2 number, since 2×135208094256012 (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 (13520809428601) 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, 5823936 + ... + 7807678.

It is an arithmetic number, because the mean of its divisors is an integer number (1735789886208).

Almost surely, 213520809425601 is an apocalyptic number.

It is an amenable number.

13520809425601 is a deficient number, since it is larger than the sum of its proper divisors (365509664063).

13520809425601 is a wasteful number, since it uses less digits than its factorization.

13520809425601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167991.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 13520809425601 in words is "thirteen trillion, five hundred twenty billion, eight hundred nine million, four hundred twenty-five thousand, six hundred one".

Divisors: 1 37 184211 1983743 6815807 73398491 365427281773 13520809425601