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23012430 = 2357109583
BaseRepresentation
bin101011111001…
…0010001001110
31121022011010020
41113302101032
521342344210
62141123010
7366413430
oct127622116
947264106
1023012430
1111a98641
127859466
1349c962c
1430b0650
152048770
hex15f244e

23012430 has 32 divisors (see below), whose sum is σ = 63120384. Its totient is φ = 5259936.

The previous prime is 23012411. The next prime is 23012453. The reversal of 23012430 is 3421032.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 54582 + ... + 55001.

It is an arithmetic number, because the mean of its divisors is an integer number (1972512).

Almost surely, 223012430 is an apocalyptic number.

23012430 is an abundant number, since it is smaller than the sum of its proper divisors (40107954).

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

23012430 is a wasteful number, since it uses less digits than its factorization.

23012430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109600.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23012430 is about 4797.1272653537. The cubic root of 23012430 is about 284.4379195801.

Adding to 23012430 its reverse (3421032), we get a palindrome (26433462).

The spelling of 23012430 in words is "twenty-three million, twelve thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 109583 219166 328749 547915 657498 767081 1095830 1534162 1643745 2301243 3287490 3835405 4602486 7670810 11506215 23012430