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13783828 = 227394663
BaseRepresentation
bin110100100101…
…001100010100
3221221021212011
4310211030110
512012040303
61211234004
7225106042
oct64451424
927837764
1013783828
117864aa3
124748904
132b17c16
141b8b392
15132416d
hexd25314

13783828 has 12 divisors (see below), whose sum is σ = 24159520. Its totient is φ = 6881112.

The previous prime is 13783817. The next prime is 13783837. The reversal of 13783828 is 82838731.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625 + ... + 5287.

Almost surely, 213783828 is an apocalyptic number.

It is an amenable number.

13783828 is a deficient number, since it is larger than the sum of its proper divisors (10375692).

13783828 is a wasteful number, since it uses less digits than its factorization.

13783828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406 (or 5404 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 13783828 is about 3712.6578080938. The cubic root of 13783828 is about 239.7672975944.

The spelling of 13783828 in words is "thirteen million, seven hundred eighty-three thousand, eight hundred twenty-eight".

Divisors: 1 2 4 739 1478 2956 4663 9326 18652 3445957 6891914 13783828