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23013230 = 257132413
BaseRepresentation
bin101011111001…
…0011101101110
31121022012012212
41113302131232
521342410410
62141130422
7366415652
oct127623556
947265185
1023013230
1111a991a9
127859a12
1349c9ac6
1430b0a62
152048b05
hex15f276e

23013230 has 16 divisors (see below), whose sum is σ = 42008544. Its totient is φ = 9075360.

The previous prime is 23013209. The next prime is 23013233. The reversal of 23013230 is 3231032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15497 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (2625534).

Almost surely, 223013230 is an apocalyptic number.

23013230 is a deficient number, since it is larger than the sum of its proper divisors (18995314).

23013230 is a wasteful number, since it uses less digits than its factorization.

23013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32491.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 23013230 is about 4797.2106478661. The cubic root of 23013230 is about 284.4412155915.

Adding to 23013230 its reverse (3231032), we get a palindrome (26244262).

The spelling of 23013230 in words is "twenty-three million, thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 32413 64826 162065 324130 2301323 4602646 11506615 23013230