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13606868 = 22111718191
BaseRepresentation
bin110011111001…
…111111010100
3221121022010002
4303321333110
511440404433
61203350432
7223441112
oct63717724
927538102
1013606868
117754050
124682418
132a85502
141b42ab2
1512db9e8
hexcf9fd4

13606868 has 24 divisors (see below), whose sum is σ = 27506304. Its totient is φ = 5820800.

The previous prime is 13606847. The next prime is 13606871. The reversal of 13606868 is 86860631.

13606868 is a modest number, since divided by 6868 gives 1360 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8348 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (1146096).

Almost surely, 213606868 is an apocalyptic number.

It is an amenable number.

13606868 is an abundant number, since it is smaller than the sum of its proper divisors (13899436).

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

13606868 is a wasteful number, since it uses less digits than its factorization.

13606868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18223 (or 18221 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 13606868 is about 3688.7488393763. The cubic root of 13606868 is about 238.7368122244.

It can be divided in two parts, 1360 and 6868, that added together give a palindrome (8228).

The spelling of 13606868 in words is "thirteen million, six hundred six thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 18191 36382 72764 200101 309247 400202 618494 800404 1236988 3401717 6803434 13606868