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13073830 = 2571116979
BaseRepresentation
bin110001110111…
…110110100110
3220121012220221
4301313312212
511321330310
61144114554
7216061060
oct61676646
926535827
1013073830
11741a620
124465a5a
1329299c3
141a44730
151233ada
hexc77da6

13073830 has 32 divisors (see below), whose sum is σ = 29341440. Its totient is φ = 4074720.

The previous prime is 13073813. The next prime is 13073831. The reversal of 13073830 is 3837031.

It is a junction number, because it is equal to n+sod(n) for n = 13073795 and 13073804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073831) 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, 7720 + ... + 9259.

It is an arithmetic number, because the mean of its divisors is an integer number (916920).

Almost surely, 213073830 is an apocalyptic number.

13073830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13073830 is an abundant number, since it is smaller than the sum of its proper divisors (16267610).

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

13073830 is a wasteful number, since it uses less digits than its factorization.

13073830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17004.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13073830 is about 3615.7751589390. The cubic root of 13073830 is about 235.5777545070.

The spelling of 13073830 in words is "thirteen million, seventy-three thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 16979 33958 84895 118853 169790 186769 237706 373538 594265 933845 1188530 1307383 1867690 2614766 6536915 13073830