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13125791247924 = 22383128910223821
BaseRepresentation
bin1011111100000001011000…
…0111111110111000110100
31201110210221221221000102210
42333000112013332320310
53210023110024413144
643525523311333420
72523210225513465
oct277002607767064
951423857830383
1013125791247924
114200686a75123
12157ba48b21270
137429ab90b6b4
1433541255ad6c
1517b672c8cab9
hexbf0161fee34

13125791247924 has 48 divisors (see below), whose sum is σ = 31019893853760. Its totient is φ = 4319195892480.

The previous prime is 13125791247901. The next prime is 13125791247929. The reversal of 13125791247924 is 42974219752131.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125791247929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3828067 + ... + 6395754.

It is an arithmetic number, because the mean of its divisors is an integer number (646247788620).

Almost surely, 213125791247924 is an apocalyptic number.

It is an amenable number.

13125791247924 is an abundant number, since it is smaller than the sum of its proper divisors (17894102605836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13125791247924 is a wasteful number, since it uses less digits than its factorization.

13125791247924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225200 (or 10225198 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The spelling of 13125791247924 in words is "thirteen trillion, one hundred twenty-five billion, seven hundred ninety-one million, two hundred forty-seven thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 1289 2578 3867 5156 7734 15468 106987 213974 320961 427948 641922 1283844 10223821 20447642 30671463 40895284 61342926 122685852 848577143 1697154286 2545731429 3394308572 5091462858 10182925716 13178505269 26357010538 39535515807 52714021076 79071031614 158142063228 1093815937327 2187631874654 3281447811981 4375263749308 6562895623962 13125791247924