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13250605 = 514831787
BaseRepresentation
bin110010100011…
…000000101101
3220221012102011
4302203000231
511343004410
61152001221
7220425334
oct62430055
926835364
1013250605
117530415
124530211
13298c2c4
141a8cd1b
15126b18a
hexca302d

13250605 has 8 divisors (see below), whose sum is σ = 15920352. Its totient is φ = 10587408.

The previous prime is 13250563. The next prime is 13250621. The reversal of 13250605 is 50605231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13250605 - 221 = 11153453 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6522 + ... + 8308.

It is an arithmetic number, because the mean of its divisors is an integer number (1990044).

Almost surely, 213250605 is an apocalyptic number.

It is an amenable number.

13250605 is a deficient number, since it is larger than the sum of its proper divisors (2669747).

13250605 is a wasteful number, since it uses less digits than its factorization.

13250605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13250605 is about 3640.1380468328. The cubic root of 13250605 is about 236.6347760596.

Adding to 13250605 its reverse (50605231), we get a palindrome (63855836).

The spelling of 13250605 in words is "thirteen million, two hundred fifty thousand, six hundred five".

Divisors: 1 5 1483 1787 7415 8935 2650121 13250605