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23891230 = 2511435051
BaseRepresentation
bin101101100100…
…0110100011110
31122221210121101
41123020310132
522104004410
62212023314
7410033506
oct133106436
948853541
1023891230
1112538920
128001b3a
134c4662c
14325ca06
15216dd3a
hex16c8d1e

23891230 has 32 divisors (see below), whose sum is σ = 48014208. Its totient is φ = 8484000.

The previous prime is 23891209. The next prime is 23891261. The reversal of 23891230 is 3219832.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2205 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (1500444).

Almost surely, 223891230 is an apocalyptic number.

23891230 is an abundant number, since it is smaller than the sum of its proper divisors (24122978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23891230 is a wasteful number, since it uses less digits than its factorization.

23891230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23891230 is about 4887.8655873500. The cubic root of 23891230 is about 288.0134944166.

The spelling of 23891230 in words is "twenty-three million, eight hundred ninety-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 2365 4730 5051 10102 25255 50510 55561 111122 217193 277805 434386 555610 1085965 2171930 2389123 4778246 11945615 23891230