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13261308601 = 137137370501
BaseRepresentation
bin11000101100110111…
…11000001010111001
31021020012111021110211
430112123320022321
5204124343333401
610031523511121
7646425156202
oct142633701271
937205437424
1013261308601
115695732482
1226a12284a1
131334573788
148db34a5a9
1552936b951
hex3166f82b9

13261308601 has 8 divisors (see below), whose sum is σ = 13368025224. Its totient is φ = 13154736000.

The previous prime is 13261308583. The next prime is 13261308667. The reversal of 13261308601 is 10680316231.

It can be written as a sum of positive squares in 4 ways, for example, as 7950397225 + 5310911376 = 89165^2 + 72876^2 .

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-13261308601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261308101) 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, 152851 + ... + 223351.

It is an arithmetic number, because the mean of its divisors is an integer number (1671003153).

Almost surely, 213261308601 is an apocalyptic number.

It is an amenable number.

13261308601 is a deficient number, since it is larger than the sum of its proper divisors (106716623).

13261308601 is a wasteful number, since it uses less digits than its factorization.

13261308601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72011.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 13261308601 in words is "thirteen billion, two hundred sixty-one million, three hundred eight thousand, six hundred one".

Divisors: 1 137 1373 70501 188101 9658637 96797873 13261308601