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13145006361 = 34381668787
BaseRepresentation
bin11000011111000000…
…01110000100011001
31020221002122111210110
430033200032010121
5203410110200421
610012211034533
7643513465464
oct141740160431
936832574713
1013145006361
115636016923
12266a29ba49
131316442996
148c9b142db
1551e046a76
hex30f80e119

13145006361 has 4 divisors (see below), whose sum is σ = 17526675152. Its totient is φ = 8763337572.

The previous prime is 13145006333. The next prime is 13145006377. The reversal of 13145006361 is 16360054131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13145006361 - 26 = 13145006297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13145006321) 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, 2190834391 + ... + 2190834396.

It is an arithmetic number, because the mean of its divisors is an integer number (4381668788).

Almost surely, 213145006361 is an apocalyptic number.

It is an amenable number.

13145006361 is a deficient number, since it is larger than the sum of its proper divisors (4381668791).

13145006361 is an equidigital number, since it uses as much as digits as its factorization.

13145006361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381668790.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 13145006361 in words is "thirteen billion, one hundred forty-five million, six thousand, three hundred sixty-one".

Divisors: 1 3 4381668787 13145006361