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13830023 = 92914887
BaseRepresentation
bin110100110000…
…011110000111
3222000122020002
4310300132013
512020030043
61212231515
7225360524
oct64603607
928018202
1013830023
117896779
12476b59b
132b32c5c
141ba014b
151332bb8
hexd30787

13830023 has 4 divisors (see below), whose sum is σ = 13845840. Its totient is φ = 13814208.

The previous prime is 13830007. The next prime is 13830049. The reversal of 13830023 is 32003831.

13830023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13830023 - 24 = 13830007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13829977 and 13830004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13830053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6515 + ... + 8372.

It is an arithmetic number, because the mean of its divisors is an integer number (3461460).

Almost surely, 213830023 is an apocalyptic number.

13830023 is a deficient number, since it is larger than the sum of its proper divisors (15817).

13830023 is an equidigital number, since it uses as much as digits as its factorization.

13830023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13830023 is about 3718.8738886927. The cubic root of 13830023 is about 240.0348502632.

Adding to 13830023 its reverse (32003831), we get a palindrome (45833854).

The spelling of 13830023 in words is "thirteen million, eight hundred thirty thousand, twenty-three".

Divisors: 1 929 14887 13830023