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13628142 = 2331122943
BaseRepresentation
bin110011111111…
…001011101110
3221122101022000
4303333023232
511442100032
61204033130
7223560123
oct63771356
927571260
1013628142
117769030
1246927a6
132a920b8
141b4a74a
1512e2e7c
hexcff2ee

13628142 has 32 divisors (see below), whose sum is σ = 33039360. Its totient is φ = 4129560.

The previous prime is 13628137. The next prime is 13628171. The reversal of 13628142 is 24182631.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10878 + ... + 12065.

It is an arithmetic number, because the mean of its divisors is an integer number (1032480).

Almost surely, 213628142 is an apocalyptic number.

13628142 is an abundant number, since it is smaller than the sum of its proper divisors (19411218).

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

13628142 is a wasteful number, since it uses less digits than its factorization.

13628142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22965 (or 22959 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 13628142 is about 3691.6313467084. The cubic root of 13628142 is about 238.8611671295.

The spelling of 13628142 in words is "thirteen million, six hundred twenty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 22943 45886 68829 137658 206487 252373 412974 504746 619461 757119 1238922 1514238 2271357 4542714 6814071 13628142