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10123013 = 23440131
BaseRepresentation
bin100110100111…
…011100000101
3201001022011102
4212213130011
510042414023
61000545445
7152021105
oct46473405
921038142
1010123013
11579462a
123482285
132135864
1414b7205
15d4e628
hex9a7705

10123013 has 4 divisors (see below), whose sum is σ = 10563168. Its totient is φ = 9682860.

The previous prime is 10122997. The next prime is 10123021. The reversal of 10123013 is 31032101.

10123013 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, 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: 31032101 = 130723743.

It is a cyclic number.

It is not a de Polignac number, because 10123013 - 24 = 10122997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122985 and 10123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123033) 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, 220043 + ... + 220088.

It is an arithmetic number, because the mean of its divisors is an integer number (2640792).

Almost surely, 210123013 is an apocalyptic number.

It is an amenable number.

10123013 is a deficient number, since it is larger than the sum of its proper divisors (440155).

10123013 is an equidigital number, since it uses as much as digits as its factorization.

10123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440154.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 10123013 is about 3181.6682730920. The cubic root of 10123013 is about 216.3232827689.

Adding to 10123013 its reverse (31032101), we get a palindrome (41155114).

The spelling of 10123013 in words is "ten million, one hundred twenty-three thousand, thirteen".

Divisors: 1 23 440131 10123013