Search a number
-
+
23013123 = 3719137421
BaseRepresentation
bin101011111001…
…0011100000011
31121022012001220
41113302130003
521342404443
62141130123
7366415440
oct127623403
947265056
1023013123
1111a99111
127859943
1349c9a43
1430b09c7
152048a83
hex15f2703

23013123 has 32 divisors (see below), whose sum is σ = 37271040. Its totient is φ = 12337920.

The previous prime is 23013119. The next prime is 23013131. The reversal of 23013123 is 32131032.

23013123 = T97 + T98 + ... + T517.

It is not a de Polignac number, because 23013123 - 22 = 23013119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23013103) 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 31 ways as a sum of consecutive naturals, for example, 54453 + ... + 54873.

It is an arithmetic number, because the mean of its divisors is an integer number (1164720).

Almost surely, 223013123 is an apocalyptic number.

23013123 is a deficient number, since it is larger than the sum of its proper divisors (14257917).

23013123 is a wasteful number, since it uses less digits than its factorization.

23013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 23013123 is about 4797.1994955390. The cubic root of 23013123 is about 284.4407747544.

Adding to 23013123 its reverse (32131032), we get a palindrome (55144155).

The spelling of 23013123 in words is "twenty-three million, thirteen thousand, one hundred twenty-three".

Divisors: 1 3 7 19 21 57 133 137 399 411 421 959 1263 2603 2877 2947 7809 7999 8841 18221 23997 54663 55993 57677 167979 173031 403739 1095863 1211217 3287589 7671041 23013123