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13124304 = 243291141
BaseRepresentation
bin110010000100…
…001011010000
3220200210011100
4302010023100
511324434204
61145144400
7216361164
oct62041320
926623140
1013124304
117454536
12448b100
13294697b
141a58ca4
151243a39
hexc842d0

13124304 has 30 divisors (see below), whose sum is σ = 36730226. Its totient is φ = 4374720.

The previous prime is 13124303. The next prime is 13124311. The reversal of 13124304 is 40342131.

It can be written as a sum of positive squares in only one way, i.e., 8714304 + 4410000 = 2952^2 + 2100^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45427 + ... + 45714.

Almost surely, 213124304 is an apocalyptic number.

It is an amenable number.

13124304 is an abundant number, since it is smaller than the sum of its proper divisors (23605922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13124304 is a wasteful number, since it uses less digits than its factorization.

13124304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91155 (or 91146 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13124304 is about 3622.7481281480. The cubic root of 13124304 is about 235.8805293993.

Adding to 13124304 its reverse (40342131), we get a palindrome (53466435).

The spelling of 13124304 in words is "thirteen million, one hundred twenty-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 91141 182282 273423 364564 546846 729128 820269 1093692 1458256 1640538 2187384 3281076 4374768 6562152 13124304