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13010449 = 36072
BaseRepresentation
bin110001101000…
…011000010001
3220110222222111
4301220120101
511312313244
61142505321
7215405224
oct61503021
926428874
1013010449
117386a41
124435241
132906bba
141a295bb
15121ee34
hexc68611

13010449 has 3 divisors (see below), whose sum is σ = 13014057. Its totient is φ = 13006842.

The previous prime is 13010447. The next prime is 13010477. The reversal of 13010449 is 94401031.

The square root of 13010449 is 3607.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94401031 = 100993559.

It is not a de Polignac number, because 13010449 - 21 = 13010447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13010447) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1804 + ... + 5410.

It is an arithmetic number, because the mean of its divisors is an integer number (4338019).

Almost surely, 213010449 is an apocalyptic number.

13010449 is the 3607-th square number.

13010449 is the 1804-th centered octagonal number.

It is an amenable number.

13010449 is a deficient number, since it is larger than the sum of its proper divisors (3608).

13010449 is an frugal number, since it uses more digits than its factorization.

13010449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The cubic root of 13010449 is about 235.1964495835.

The spelling of 13010449 in words is "thirteen million, ten thousand, four hundred forty-nine".

Divisors: 1 3607 13010449