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23221234430 = 2513537171539
BaseRepresentation
bin10101101000000101…
…111110101011111110
32012221022211221011122
4111220011332223332
5340024114000210
614400115350542
71451305143632
oct255005765376
965838757148
1023221234430
119936866139
1246008b2452
132260b6c704
1411a403adc2
1590d960b55
hex56817eafe

23221234430 has 16 divisors (see below), whose sum is σ = 41801553360. Its totient is φ = 9287753472.

The previous prime is 23221234423. The next prime is 23221234457. The reversal of 23221234430 is 3443212232.

It is a self number, because there is not a number n which added to its sum of digits gives 23221234430.

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, 49601 + ... + 221139.

It is an arithmetic number, because the mean of its divisors is an integer number (2612597085).

Almost surely, 223221234430 is an apocalyptic number.

23221234430 is a deficient number, since it is larger than the sum of its proper divisors (18580318930).

23221234430 is a wasteful number, since it uses less digits than its factorization.

23221234430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185083.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23221234430 its reverse (3443212232), we get a palindrome (26664446662).

The spelling of 23221234430 in words is "twenty-three billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 13537 27074 67685 135370 171539 343078 857695 1715390 2322123443 4644246886 11610617215 23221234430