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23938253 = 291097573
BaseRepresentation
bin101101101010…
…0010011001101
31200001012002222
41123110103031
522112011003
62213025125
7410320553
oct133242315
950035088
1023938253
1112570189
1280251a5
134c61b61
143271bd3
15217cc38
hex16d44cd

23938253 has 8 divisors (see below), whose sum is σ = 24994200. Its totient is φ = 22897728.

The previous prime is 23938237. The next prime is 23938267. The reversal of 23938253 is 35283932.

It can be written as a sum of positive squares in 4 ways, for example, as 14122564 + 9815689 = 3758^2 + 3133^2 .

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 23938253 - 24 = 23938237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23938283) 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, 626 + ... + 6947.

It is an arithmetic number, because the mean of its divisors is an integer number (3124275).

Almost surely, 223938253 is an apocalyptic number.

It is an amenable number.

23938253 is a deficient number, since it is larger than the sum of its proper divisors (1055947).

23938253 is a wasteful number, since it uses less digits than its factorization.

23938253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its digits is 38880, while the sum is 35.

The square root of 23938253 is about 4892.6734000953. The cubic root of 23938253 is about 288.2023277656.

The spelling of 23938253 in words is "twenty-three million, nine hundred thirty-eight thousand, two hundred fifty-three".

Divisors: 1 29 109 3161 7573 219617 825457 23938253