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13113123452 = 22111322925041
BaseRepresentation
bin11000011011001101…
…00110001001111100
31020211212122200122222
430031212212021330
5203323424422302
610005111424512
7642645465422
oct141546461174
936755580588
1013113123452
11561a01a810
12265b685138
13130c95b960
148c57b5112
1551b349da2
hex30d9a627c

13113123452 has 24 divisors (see below), whose sum is σ = 26959849392. Its totient is φ = 5502009600.

The previous prime is 13113123433. The next prime is 13113123461. The reversal of 13113123452 is 25432131131.

13113123452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11461949 + ... + 11463092.

It is an arithmetic number, because the mean of its divisors is an integer number (1123327058).

Almost surely, 213113123452 is an apocalyptic number.

It is an amenable number.

13113123452 is an abundant number, since it is smaller than the sum of its proper divisors (13846725940).

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

13113123452 is a wasteful number, since it uses less digits than its factorization.

13113123452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22925069 (or 22925067 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

Adding to 13113123452 its reverse (25432131131), we get a palindrome (38545254583).

The spelling of 13113123452 in words is "thirteen billion, one hundred thirteen million, one hundred twenty-three thousand, four hundred fifty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 22925041 45850082 91700164 252175451 298025533 504350902 596051066 1008701804 1192102132 3278280863 6556561726 13113123452