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13120024 = 238918427
BaseRepresentation
bin110010000011…
…001000011000
3220200120021211
4302003020120
511324320044
61145112504
7216342541
oct62031030
926616254
1013120024
1174512a5
124488734
132944a38
141a574c8
151242634
hexc83218

13120024 has 16 divisors (see below), whose sum is σ = 24877800. Its totient is φ = 6485952.

The previous prime is 13119983. The next prime is 13120057. The reversal of 13120024 is 42002131.

It is a junction number, because it is equal to n+sod(n) for n = 13119986 and 13120013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8502 + ... + 9925.

Almost surely, 213120024 is an apocalyptic number.

It is an amenable number.

13120024 is a deficient number, since it is larger than the sum of its proper divisors (11757776).

13120024 is a wasteful number, since it uses less digits than its factorization.

13120024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522 (or 18518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13120024 is about 3622.1573681992. The cubic root of 13120024 is about 235.8548854126.

Adding to 13120024 its reverse (42002131), we get a palindrome (55122155).

The spelling of 13120024 in words is "thirteen million, one hundred twenty thousand, twenty-four".

Divisors: 1 2 4 8 89 178 356 712 18427 36854 73708 147416 1640003 3280006 6560012 13120024