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13808472 = 2334114033
BaseRepresentation
bin110100101011…
…001101011000
3221222112122220
4310223031120
512013332342
61211544040
7225240636
oct64531530
927875586
1013808472
117881567
12475b020
132b261c2
141b96356
15132b5ec
hexd2b358

13808472 has 32 divisors (see below), whose sum is σ = 35365680. Its totient is φ = 4490240.

The previous prime is 13808467. The next prime is 13808477. The reversal of 13808472 is 27480831.

13808472 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13808467) and next prime (13808477).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13808477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6033 + ... + 8000.

Almost surely, 213808472 is an apocalyptic number.

13808472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13808472 is an abundant number, since it is smaller than the sum of its proper divisors (21557208).

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

13808472 is a wasteful number, since it uses less digits than its factorization.

13808472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14083 (or 14079 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 13808472 is about 3715.9752421134. The cubic root of 13808472 is about 239.9101052220.

The spelling of 13808472 in words is "thirteen million, eight hundred eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 41 82 123 164 246 328 492 984 14033 28066 42099 56132 84198 112264 168396 336792 575353 1150706 1726059 2301412 3452118 4602824 6904236 13808472