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13838966 = 28977747
BaseRepresentation
bin110100110010…
…101001110110
3222001002111022
4310302221312
512020321331
61212341142
7225425561
oct64625166
928032438
1013838966
1178a2469
1247747b2
132b3704b
141ba34d8
15133567b
hexd32a76

13838966 has 8 divisors (see below), whose sum is σ = 20991960. Its totient is φ = 6841648.

The previous prime is 13838963. The next prime is 13838987. The reversal of 13838966 is 66983831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13838963) 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 3 ways as a sum of consecutive naturals, for example, 38696 + ... + 39051.

It is an arithmetic number, because the mean of its divisors is an integer number (2623995).

Almost surely, 213838966 is an apocalyptic number.

13838966 is a deficient number, since it is larger than the sum of its proper divisors (7152994).

13838966 is an equidigital number, since it uses as much as digits as its factorization.

13838966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77838.

The product of its digits is 186624, while the sum is 44.

The square root of 13838966 is about 3720.0760744910. The cubic root of 13838966 is about 240.0865775606.

The spelling of 13838966 in words is "thirteen million, eight hundred thirty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 89 178 77747 155494 6919483 13838966