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13838212 = 2210134253
BaseRepresentation
bin110100110010…
…011110000100
3222001001110101
4310302132010
512020310322
61212333444
7225423433
oct64623604
928031411
1013838212
1178a1943
124774284
132b368bb
141ba311a
151335327
hexd32784

13838212 has 12 divisors (see below), whose sum is σ = 24457356. Its totient is φ = 6850400.

The previous prime is 13838207. The next prime is 13838243. The reversal of 13838212 is 21283831.

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 5171076 = 2944^2 + 2274^2 .

It is a super-2 number, since 2×138382122 = 382992222713888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16723 + ... + 17530.

It is an arithmetic number, because the mean of its divisors is an integer number (2038113).

Almost surely, 213838212 is an apocalyptic number.

It is an amenable number.

13838212 is a deficient number, since it is larger than the sum of its proper divisors (10619144).

13838212 is a wasteful number, since it uses less digits than its factorization.

13838212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34358 (or 34356 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 13838212 is about 3719.9747310970. The cubic root of 13838212 is about 240.0822172019.

The spelling of 13838212 in words is "thirteen million, eight hundred thirty-eight thousand, two hundred twelve".

Divisors: 1 2 4 101 202 404 34253 68506 137012 3459553 6919106 13838212