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13000146 = 232166691
BaseRepresentation
bin110001100101…
…110111010010
3220110110211220
4301211313102
511312001041
61142345510
7215333205
oct61456722
926413756
1013000146
11737a225
12442b296
1329022c3
141a2593c
15121bd66
hexc65dd2

13000146 has 8 divisors (see below), whose sum is σ = 26000304. Its totient is φ = 4333380.

The previous prime is 13000139. The next prime is 13000159. The reversal of 13000146 is 64100031.

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

13000146 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083340 + ... + 1083351.

It is an arithmetic number, because the mean of its divisors is an integer number (3250038).

Almost surely, 213000146 is an apocalyptic number.

13000146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13000146 is a wasteful number, since it uses less digits than its factorization.

13000146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166696.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13000146 is about 3605.5715219643. The cubic root of 13000146 is about 235.1343490120.

Adding to 13000146 its reverse (64100031), we get a palindrome (77100177).

The spelling of 13000146 in words is "thirteen million, one hundred forty-six", and thus it is an aban number.

Divisors: 1 2 3 6 2166691 4333382 6500073 13000146