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13080545 = 510924001
BaseRepresentation
bin110001111001…
…011111100001
3220121120010122
4301321133201
511322034140
61144210025
7216116462
oct61713741
926546118
1013080545
117424675
124469915
13292ca8a
141a46d69
151235ab5
hexc797e1

13080545 has 8 divisors (see below), whose sum is σ = 15841320. Its totient is φ = 10368000.

The previous prime is 13080539. The next prime is 13080553. The reversal of 13080545 is 54508031.

It can be written as a sum of positive squares in 4 ways, for example, as 1164241 + 11916304 = 1079^2 + 3452^2 .

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

It is not a de Polignac number, because 13080545 - 28 = 13080289 is a prime.

It is a super-2 number, since 2×130805452 = 342201314994050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11456 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (1980165).

Almost surely, 213080545 is an apocalyptic number.

It is an amenable number.

13080545 is a deficient number, since it is larger than the sum of its proper divisors (2760775).

13080545 is a wasteful number, since it uses less digits than its factorization.

13080545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24115.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 13080545 is about 3616.7036096423. The cubic root of 13080545 is about 235.6180802026.

Adding to 13080545 its reverse (54508031), we get a palindrome (67588576).

The spelling of 13080545 in words is "thirteen million, eighty thousand, five hundred forty-five".

Divisors: 1 5 109 545 24001 120005 2616109 13080545