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13383344125 = 53293691957
BaseRepresentation
bin11000111011011010…
…11001111111111101
31021112201010022202001
430131231121333331
5204402114003000
610052003302301
7652436355664
oct143555317775
937481108661
1013383344125
115748604588
12271607a991
131353931048
1490d635ddb
15534e2546a
hex31db59ffd

13383344125 has 16 divisors (see below), whose sum is σ = 17278363440. Its totient is φ = 10337476800.

The previous prime is 13383344083. The next prime is 13383344147. The reversal of 13383344125 is 52144338331.

It can be written as a sum of positive squares in 8 ways, for example, as 1084977721 + 12298366404 = 32939^2 + 110898^2 .

It is not a de Polignac number, because 13383344125 - 221 = 13381246973 is a prime.

It is a super-2 number, since 2×133833441252 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842354 + ... + 1849603.

It is an arithmetic number, because the mean of its divisors is an integer number (1079897715).

Almost surely, 213383344125 is an apocalyptic number.

It is an amenable number.

13383344125 is a deficient number, since it is larger than the sum of its proper divisors (3895019315).

13383344125 is an equidigital number, since it uses as much as digits as its factorization.

13383344125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692001 (or 3691991 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The spelling of 13383344125 in words is "thirteen billion, three hundred eighty-three million, three hundred forty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 29 125 145 725 3625 3691957 18459785 92298925 107066753 461494625 535333765 2676668825 13383344125