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13204814 = 27319249
BaseRepresentation
bin110010010111…
…110101001110
3220211212121012
4302113311032
511340023224
61151005222
7220145000
oct62276516
926755535
1013204814
1174a9a77
124509812
1329744cc
141a7a370
15125c80e
hexc97d4e

13204814 has 16 divisors (see below), whose sum is σ = 23100000. Its totient is φ = 5658912.

The previous prime is 13204811. The next prime is 13204823. The reversal of 13204814 is 41840231.

13204814 = 20972 + 20982 + 20992.

It is a super-2 number, since 2×132048142 = 348734225549192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13204814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204811) 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, 8939 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (1443750).

Almost surely, 213204814 is an apocalyptic number.

13204814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13204814 is a deficient number, since it is larger than the sum of its proper divisors (9895186).

13204814 is an equidigital number, since it uses as much as digits as its factorization.

13204814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272 (or 19258 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 13204814 is about 3633.8428694703. The cubic root of 13204814 is about 236.3618765962.

The spelling of 13204814 in words is "thirteen million, two hundred four thousand, eight hundred fourteen".

Divisors: 1 2 7 14 49 98 343 686 19249 38498 134743 269486 943201 1886402 6602407 13204814