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14620813 = 43133923
BaseRepresentation
bin110111110001…
…100010001101
31000111210222121
4313301202031
512220331223
61241212541
7235163164
oct67614215
930453877
1014620813
118286919
124a91151
13304bb8c
141d283db
15143c15d
hexdf188d

14620813 has 4 divisors (see below), whose sum is σ = 14655168. Its totient is φ = 14586460.

The previous prime is 14620811. The next prime is 14620819. The reversal of 14620813 is 31802641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31802641 = 132446357.

It is a cyclic number.

It is not a de Polignac number, because 14620813 - 21 = 14620811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14620811) 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, 16531 + ... + 17392.

It is an arithmetic number, because the mean of its divisors is an integer number (3663792).

Almost surely, 214620813 is an apocalyptic number.

It is an amenable number.

14620813 is a deficient number, since it is larger than the sum of its proper divisors (34355).

14620813 is an equidigital number, since it uses as much as digits as its factorization.

14620813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34354.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 14620813 is about 3823.7171705031. The cubic root of 14620813 is about 244.5253227704.

The spelling of 14620813 in words is "fourteen million, six hundred twenty thousand, eight hundred thirteen".

Divisors: 1 431 33923 14620813