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11638345 = 523101203
BaseRepresentation
bin101100011001…
…011001001001
3210220021210211
4230121121021
510434411340
61053241121
7200632015
oct54313111
923807724
1011638345
11662a074
123a931a1
1325464c4
14178d545
15104d5ea
hexb19649

11638345 has 8 divisors (see below), whose sum is σ = 14573376. Its totient is φ = 8905776.

The previous prime is 11638339. The next prime is 11638349. The reversal of 11638345 is 54383611.

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 11638345 - 211 = 11636297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11638349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50487 + ... + 50716.

It is an arithmetic number, because the mean of its divisors is an integer number (1821672).

Almost surely, 211638345 is an apocalyptic number.

It is an amenable number.

11638345 is a deficient number, since it is larger than the sum of its proper divisors (2935031).

11638345 is a wasteful number, since it uses less digits than its factorization.

11638345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101231.

The product of its digits is 8640, while the sum is 31.

The square root of 11638345 is about 3411.5018686790. The cubic root of 11638345 is about 226.6193949383.

The spelling of 11638345 in words is "eleven million, six hundred thirty-eight thousand, three hundred forty-five".

Divisors: 1 5 23 115 101203 506015 2327669 11638345