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23017230 = 2335163523
BaseRepresentation
bin101011111001…
…1011100001110
31121022101201000
41113303130032
521343022410
62141201130
7366433425
oct127633416
947271630
1023017230
1111aa1205
1278601a6
1349cb882
1430b22bc
152049dc0
hex15f370e

23017230 has 64 divisors (see below), whose sum is σ = 61873920. Its totient is φ = 6088608.

The previous prime is 23017229. The next prime is 23017231. The reversal of 23017230 is 3271032.

It is an interprime number because it is at equal distance from previous prime (23017229) and next prime (23017231).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23017231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43749 + ... + 44271.

It is an arithmetic number, because the mean of its divisors is an integer number (966780).

Almost surely, 223017230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23017230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30936960).

23017230 is an abundant number, since it is smaller than the sum of its proper divisors (38856690).

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

23017230 is a wasteful number, since it uses less digits than its factorization.

23017230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23017230 is about 4797.6275386903. The cubic root of 23017230 is about 284.4576945031.

Adding to 23017230 its reverse (3271032), we get a palindrome (26288262).

The spelling of 23017230 in words is "twenty-three million, seventeen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 163 270 326 489 523 815 978 1046 1467 1569 1630 2445 2615 2934 3138 4401 4707 4890 5230 7335 7845 8802 9414 14121 14670 15690 22005 23535 28242 44010 47070 70605 85249 141210 170498 255747 426245 511494 767241 852490 1278735 1534482 2301723 2557470 3836205 4603446 7672410 11508615 23017230