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13642325 = 522931607
BaseRepresentation
bin110100000010…
…101001010101
3221200002202022
4310002221111
511443023300
61204222525
7223646354
oct64025125
927602668
1013642325
117778754
12469aa45
132a986a8
141b5199b
1512e7285
hexd02a55

13642325 has 24 divisors (see below), whose sum is σ = 18094080. Its totient is φ = 10180800.

The previous prime is 13642319. The next prime is 13642327. The reversal of 13642325 is 52324631.

It is not a de Polignac number, because 13642325 - 216 = 13576789 is a prime.

It is a super-2 number, since 2×136423252 = 372226062811250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13642294 and 13642303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22172 + ... + 22778.

It is an arithmetic number, because the mean of its divisors is an integer number (753920).

Almost surely, 213642325 is an apocalyptic number.

It is an amenable number.

13642325 is a deficient number, since it is larger than the sum of its proper divisors (4451755).

13642325 is a wasteful number, since it uses less digits than its factorization.

13642325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 672 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 13642325 is about 3693.5518136341. The cubic root of 13642325 is about 238.9440004651.

Adding to 13642325 its reverse (52324631), we get a palindrome (65966956).

The spelling of 13642325 in words is "thirteen million, six hundred forty-two thousand, three hundred twenty-five".

Divisors: 1 5 25 29 31 145 155 607 725 775 899 3035 4495 15175 17603 18817 22475 88015 94085 440075 470425 545693 2728465 13642325