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23142430 = 253174653
BaseRepresentation
bin101100001001…
…0000000011110
31121112202110001
41120102000132
521411024210
62144004514
7400464433
oct130220036
947482401
1023142430
1112077283
12790073a
134a4385c
143105b8a
15207203a
hex161201e

23142430 has 16 divisors (see below), whose sum is σ = 43000704. Its totient is φ = 8958240.

The previous prime is 23142421. The next prime is 23142463. The reversal of 23142430 is 3424132.

It is a junction number, because it is equal to n+sod(n) for n = 23142398 and 23142407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37017 + ... + 37636.

It is an arithmetic number, because the mean of its divisors is an integer number (2687544).

Almost surely, 223142430 is an apocalyptic number.

23142430 is a deficient number, since it is larger than the sum of its proper divisors (19858274).

23142430 is a wasteful number, since it uses less digits than its factorization.

23142430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74691.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23142430 is about 4810.6579591569. The cubic root of 23142430 is about 284.9725222303.

Adding to 23142430 its reverse (3424132), we get a palindrome (26566562).

The spelling of 23142430 in words is "twenty-three million, one hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 74653 149306 373265 746530 2314243 4628486 11571215 23142430