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13229808 = 2431731523
BaseRepresentation
bin110010011101…
…111011110000
3220220010212220
4302131323300
511341323213
61151321040
7220310604
oct62357360
926803786
1013229808
117516829
124520180
1329829b7
141a85504
151264e23
hexc9def0

13229808 has 80 divisors (see below), whose sum is σ = 37426176. Its totient is φ = 4008960.

The previous prime is 13229803. The next prime is 13229809. The reversal of 13229808 is 80892231.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13229803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25035 + ... + 25557.

Almost surely, 213229808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13229808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18713088).

13229808 is an abundant number, since it is smaller than the sum of its proper divisors (24196368).

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

13229808 is a wasteful number, since it uses less digits than its factorization.

13229808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13229808 is about 3637.2803026437. The cubic root of 13229808 is about 236.5109107628.

The spelling of 13229808 in words is "thirteen million, two hundred twenty-nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 31 34 48 51 62 68 93 102 124 136 186 204 248 272 372 408 496 523 527 744 816 1046 1054 1488 1569 1581 2092 2108 3138 3162 4184 4216 6276 6324 8368 8432 8891 12552 12648 16213 17782 25104 25296 26673 32426 35564 48639 53346 64852 71128 97278 106692 129704 142256 194556 213384 259408 275621 389112 426768 551242 778224 826863 1102484 1653726 2204968 3307452 4409936 6614904 13229808