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13000705 = 58331327
BaseRepresentation
bin110001100110…
…000000000001
3220110111121121
4301212000001
511312010310
61142352241
7215334634
oct61460001
926414547
1013000705
11737a693
12442b681
132902633
141a25c1b
15121c0da
hexc66001

13000705 has 8 divisors (see below), whose sum is σ = 15789312. Its totient is φ = 10274928.

The previous prime is 13000679. The next prime is 13000711. The reversal of 13000705 is 50700031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13000705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15249 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (1973664).

It is a Proth number, since it is equal to 1587 ⋅ 213 + 1 and 1587 < 213.

Almost surely, 213000705 is an apocalyptic number.

It is an amenable number.

13000705 is a deficient number, since it is larger than the sum of its proper divisors (2788607).

13000705 is an equidigital number, since it uses as much as digits as its factorization.

13000705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31415.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 13000705 is about 3605.6490400481. The cubic root of 13000705 is about 235.1377191849.

Adding to 13000705 its reverse (50700031), we get a palindrome (63700736).

The spelling of 13000705 in words is "thirteen million, seven hundred five", and thus it is an aban number.

Divisors: 1 5 83 415 31327 156635 2600141 13000705