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23053843 = 231002341
BaseRepresentation
bin101011111110…
…0011000010011
31121101020221001
41113330120103
521400210333
62142042431
7366645241
oct127743023
947336831
1023053843
111201676a
127879417
134a12437
1430c1791
152055b7d
hex15fc613

23053843 has 4 divisors (see below), whose sum is σ = 24056208. Its totient is φ = 22051480.

The previous prime is 23053777. The next prime is 23053847. The reversal of 23053843 is 34835032.

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

It is not a de Polignac number, because 23053843 - 217 = 22922771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23053847) 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, 501148 + ... + 501193.

It is an arithmetic number, because the mean of its divisors is an integer number (6014052).

Almost surely, 223053843 is an apocalyptic number.

23053843 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23053843 is a deficient number, since it is larger than the sum of its proper divisors (1002365).

23053843 is a wasteful number, since it uses less digits than its factorization.

23053843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002364.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 23053843 is about 4801.4417626376. The cubic root of 23053843 is about 284.6084414612.

Adding to 23053843 its reverse (34835032), we get a palindrome (57888875).

The spelling of 23053843 in words is "twenty-three million, fifty-three thousand, eight hundred forty-three".

Divisors: 1 23 1002341 23053843