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23875429 = 171404437
BaseRepresentation
bin101101100010…
…0111101100101
31122220222221011
41123010331211
522103003204
62211422221
7406636444
oct133047545
948828834
1023875429
1112527a66
127bb4971
134c3c396
143256d5b
152169304
hex16c4f65

23875429 has 4 divisors (see below), whose sum is σ = 25279884. Its totient is φ = 22470976.

The previous prime is 23875427. The next prime is 23875441. The reversal of 23875429 is 92457832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7049025 + 16826404 = 2655^2 + 4102^2 .

It is a cyclic number.

It is not a de Polignac number, because 23875429 - 21 = 23875427 is a prime.

It is a super-2 number, since 2×238754292 = 1140072219868082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23875391 and 23875400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23875427) 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, 702202 + ... + 702235.

It is an arithmetic number, because the mean of its divisors is an integer number (6319971).

Almost surely, 223875429 is an apocalyptic number.

It is an amenable number.

23875429 is a deficient number, since it is larger than the sum of its proper divisors (1404455).

23875429 is a wasteful number, since it uses less digits than its factorization.

23875429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404454.

The product of its digits is 120960, while the sum is 40.

The square root of 23875429 is about 4886.2489703248. The cubic root of 23875429 is about 287.9499856887.

The spelling of 23875429 in words is "twenty-three million, eight hundred seventy-five thousand, four hundred twenty-nine".

Divisors: 1 17 1404437 23875429