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13848939 = 3213412887
BaseRepresentation
bin110100110101…
…000101101011
3222001121011200
4310311011223
512021131224
61212455243
7225466626
oct64650553
928047150
1013848939
1178a9a05
12477a523
132b3b750
141ba6dbd
1513385c9
hexd3516b

13848939 has 24 divisors (see below), whose sum is σ = 22075872. Its totient is φ = 8311680.

The previous prime is 13848917. The next prime is 13848943. The reversal of 13848939 is 93984831.

13848939 is a `hidden beast` number, since 138 + 489 + 39 = 666.

13848939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13848939 - 27 = 13848811 is a prime.

It is a super-2 number, since 2×138489392 = 383586222851442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13848894 and 13848903.

It is not an unprimeable number, because it can be changed into a prime (13848949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3354 + ... + 6240.

It is an arithmetic number, because the mean of its divisors is an integer number (919828).

Almost surely, 213848939 is an apocalyptic number.

13848939 is a deficient number, since it is larger than the sum of its proper divisors (8226933).

13848939 is a wasteful number, since it uses less digits than its factorization.

13848939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947 (or 2944 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 13848939 is about 3721.4162626613. The cubic root of 13848939 is about 240.1442362156.

The spelling of 13848939 in words is "thirteen million, eight hundred forty-eight thousand, nine hundred thirty-nine".

Divisors: 1 3 9 13 39 41 117 123 369 533 1599 2887 4797 8661 25983 37531 112593 118367 337779 355101 1065303 1538771 4616313 13848939