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23435425 = 521372109
BaseRepresentation
bin101100101100…
…1100010100001
31122002122100201
41121121202201
521444413200
62154145201
7403124566
oct131314241
948078321
1023435425
1112257422
127a22201
134b17020
14318086d
1520cdc6a
hex16598a1

23435425 has 12 divisors (see below), whose sum is σ = 31295740. Its totient is φ = 17305920.

The previous prime is 23435389. The next prime is 23435431. The reversal of 23435425 is 52453432.

It can be written as a sum of positive squares in 6 ways, for example, as 1868689 + 21566736 = 1367^2 + 4644^2 .

It is not a de Polignac number, because 23435425 - 217 = 23304353 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23435393 and 23435402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35730 + ... + 36379.

Almost surely, 223435425 is an apocalyptic number.

23435425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23435425 is a deficient number, since it is larger than the sum of its proper divisors (7860315).

23435425 is a wasteful number, since it uses less digits than its factorization.

23435425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72132 (or 72127 counting only the distinct ones).

The product of its digits is 14400, while the sum is 28.

The square root of 23435425 is about 4841.0148729373. The cubic root of 23435425 is about 286.1701149418.

Adding to 23435425 its reverse (52453432), we get a palindrome (75888857).

The spelling of 23435425 in words is "twenty-three million, four hundred thirty-five thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 325 72109 360545 937417 1802725 4687085 23435425