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23102593 = 173133541
BaseRepresentation
bin101100000100…
…0010010000001
31121110201210121
41120020102001
521403240333
62143100241
7400240333
oct130102201
947421717
1023102593
111204a358
1278a1681
134a2b697
1430d5453
15206532d
hex1608481

23102593 has 4 divisors (see below), whose sum is σ = 23236308. Its totient is φ = 22968880.

The previous prime is 23102579. The next prime is 23102617. The reversal of 23102593 is 39520132.

It is a happy number.

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 16507969 + 6594624 = 4063^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 23102593 - 25 = 23102561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23102543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66598 + ... + 66943.

It is an arithmetic number, because the mean of its divisors is an integer number (5809077).

Almost surely, 223102593 is an apocalyptic number.

It is an amenable number.

23102593 is a deficient number, since it is larger than the sum of its proper divisors (133715).

23102593 is a wasteful number, since it uses less digits than its factorization.

23102593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133714.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23102593 is about 4806.5156818635. The cubic root of 23102593 is about 284.8089126385.

The spelling of 23102593 in words is "twenty-three million, one hundred two thousand, five hundred ninety-three".

Divisors: 1 173 133541 23102593