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13204623 = 36476803
BaseRepresentation
bin110010010111…
…110010001111
3220211212100010
4302113302033
511340021443
61151004303
7220144305
oct62276217
926755303
1013204623
1174a9913
124509693
1329743b3
141a7a275
15125c733
hexc97c8f

13204623 has 8 divisors (see below), whose sum is σ = 17635968. Its totient is φ = 8788184.

The previous prime is 13204619. The next prime is 13204627. The reversal of 13204623 is 32640231.

It is a happy number.

13204623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13204619) and next prime (13204627).

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

It is a cyclic number.

It is not a de Polignac number, because 13204623 - 22 = 13204619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13204623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204627) 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, 1461 + ... + 5342.

It is an arithmetic number, because the mean of its divisors is an integer number (2204496).

Almost surely, 213204623 is an apocalyptic number.

13204623 is a deficient number, since it is larger than the sum of its proper divisors (4431345).

13204623 is an equidigital number, since it uses as much as digits as its factorization.

13204623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7453.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13204623 is about 3633.8165886572. The cubic root of 13204623 is about 236.3607369781.

Adding to 13204623 its reverse (32640231), we get a palindrome (45844854).

The spelling of 13204623 in words is "thirteen million, two hundred four thousand, six hundred twenty-three".

Divisors: 1 3 647 1941 6803 20409 4401541 13204623