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23406425 = 5271311021
BaseRepresentation
bin101100101001…
…0011101011001
31122001011120122
41121102131121
521443001200
62153403025
7402644210
oct131223531
948034518
1023406425
1112237659
127a09475
134b06a73
143174077
1520c5385
hex1652759

23406425 has 24 divisors (see below), whose sum is σ = 33456192. Its totient is φ = 15912000.

The previous prime is 23406413. The next prime is 23406431. The reversal of 23406425 is 52460432.

It is not a de Polignac number, because 23406425 - 210 = 23405401 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23406394 and 23406403.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22415 + ... + 23435.

It is an arithmetic number, because the mean of its divisors is an integer number (1394008).

Almost surely, 223406425 is an apocalyptic number.

23406425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23406425 is a deficient number, since it is larger than the sum of its proper divisors (10049767).

23406425 is a wasteful number, since it uses less digits than its factorization.

23406425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 23406425 is about 4838.0187060407. The cubic root of 23406425 is about 286.0520264946.

Adding to 23406425 its reverse (52460432), we get a palindrome (75866857).

The spelling of 23406425 in words is "twenty-three million, four hundred six thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 131 175 655 917 1021 3275 4585 5105 7147 22925 25525 35735 133751 178675 668755 936257 3343775 4681285 23406425