Search a number
-
+
13250649 = 320632141
BaseRepresentation
bin110010100011…
…000001011001
3220221012110210
4302203001121
511343010044
61152001333
7220425426
oct62430131
926835423
1013250649
117530455
124530249
13298c329
141a8cd4d
15126b1b9
hexca3059

13250649 has 8 divisors (see below), whose sum is σ = 17684352. Its totient is φ = 8825360.

The previous prime is 13250621. The next prime is 13250683. The reversal of 13250649 is 94605231.

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 13250649 - 27 = 13250521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13250249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119 + ... + 7259.

It is an arithmetic number, because the mean of its divisors is an integer number (2210544).

Almost surely, 213250649 is an apocalyptic number.

It is an amenable number.

13250649 is a deficient number, since it is larger than the sum of its proper divisors (4433703).

13250649 is a wasteful number, since it uses less digits than its factorization.

13250649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13250649 is about 3640.1440905547. The cubic root of 13250649 is about 236.6350379827.

The spelling of 13250649 in words is "thirteen million, two hundred fifty thousand, six hundred forty-nine".

Divisors: 1 3 2063 2141 6189 6423 4416883 13250649