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13057838 = 229322283
BaseRepresentation
bin110001110011…
…111100101110
3220120101222122
4301303330232
511320322323
61143512542
7215663333
oct61637456
926511878
1013057838
117409602
124458752
132922641
141a3c98a
15122dec8
hexc73f2e

13057838 has 8 divisors (see below), whose sum is σ = 19654488. Its totient is φ = 6506344.

The previous prime is 13057829. The next prime is 13057841. The reversal of 13057838 is 83875031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13057798 and 13057807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10556 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (2456811).

Almost surely, 213057838 is an apocalyptic number.

13057838 is a deficient number, since it is larger than the sum of its proper divisors (6596650).

13057838 is a wasteful number, since it uses less digits than its factorization.

13057838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22578.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 13057838 is about 3613.5630615779. The cubic root of 13057838 is about 235.4816618654.

The spelling of 13057838 in words is "thirteen million, fifty-seven thousand, eight hundred thirty-eight".

Divisors: 1 2 293 586 22283 44566 6528919 13057838