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13092746861 = 56333232417
BaseRepresentation
bin11000011000110001…
…10111011001101101
31020210110022110020102
430030120313121231
5203303220344421
610003103000445
7642310340435
oct141430673155
936713273212
1013092746861
115609572557
122654899125
131308675cbc
148c2bcd2c5
1551967260b
hex30c63766d

13092746861 has 4 divisors (see below), whose sum is σ = 13093035612. Its totient is φ = 13092458112.

The previous prime is 13092746831. The next prime is 13092746903. The reversal of 13092746861 is 16864729031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1832353636 + 11260393225 = 42806^2 + 106115^2 .

It is a cyclic number.

It is not a de Polignac number, because 13092746861 - 222 = 13088552557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13092746831) 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, 59876 + ... + 172541.

It is an arithmetic number, because the mean of its divisors is an integer number (3273258903).

Almost surely, 213092746861 is an apocalyptic number.

It is an amenable number.

13092746861 is a deficient number, since it is larger than the sum of its proper divisors (288751).

13092746861 is an equidigital number, since it uses as much as digits as its factorization.

13092746861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288750.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 13092746861 in words is "thirteen billion, ninety-two million, seven hundred forty-six thousand, eight hundred sixty-one".

Divisors: 1 56333 232417 13092746861