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23420435 = 55388379
BaseRepresentation
bin101100101010…
…1111000010011
31122001212210112
41121111320103
521443423220
62153551535
7403033103
oct131257023
948055715
1023420435
1112247135
127a155ab
134b1025c
143179203
1520c95c5
hex1655e13

23420435 has 8 divisors (see below), whose sum is σ = 28635120. Its totient is φ = 18382624.

The previous prime is 23420387. The next prime is 23420437. The reversal of 23420435 is 53402432.

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 23420435 - 216 = 23354899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23420435.

It is not an unprimeable number, because it can be changed into a prime (23420437) 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 7 ways as a sum of consecutive naturals, for example, 43925 + ... + 44454.

It is an arithmetic number, because the mean of its divisors is an integer number (3579390).

Almost surely, 223420435 is an apocalyptic number.

23420435 is a deficient number, since it is larger than the sum of its proper divisors (5214685).

23420435 is an equidigital number, since it uses as much as digits as its factorization.

23420435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88437.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23420435 is about 4839.4663962053. The cubic root of 23420435 is about 286.1090876017.

Adding to 23420435 its reverse (53402432), we get a palindrome (76822867).

The spelling of 23420435 in words is "twenty-three million, four hundred twenty thousand, four hundred thirty-five".

Divisors: 1 5 53 265 88379 441895 4684087 23420435