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23143423330 = 2510513220141
BaseRepresentation
bin10101100011011101…
…001001110101100010
32012201220102201102001
4111203131021311202
5334344204021310
614344255514214
71446341565256
oct254335116542
965656381361
1023143423330
1198a694a545
12459a82896a
13224a9c7741
141197984266
15906be093a
hex563749d62

23143423330 has 16 divisors (see below), whose sum is σ = 41662313784. Its totient is φ = 9256446720.

The previous prime is 23143423327. The next prime is 23143423337. The reversal of 23143423330 is 3332434132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9539233561 + 13604189769 = 97669^2 + 116637^2 .

It is not an unprimeable number, because it can be changed into a prime (23143423337) 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, 4941 + ... + 215200.

Almost surely, 223143423330 is an apocalyptic number.

23143423330 is a deficient number, since it is larger than the sum of its proper divisors (18518890454).

23143423330 is a wasteful number, since it uses less digits than its factorization.

23143423330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230661.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 23143423330 its reverse (3332434132), we get a palindrome (26475857462).

The spelling of 23143423330 in words is "twenty-three billion, one hundred forty-three million, four hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 10513 21026 52565 105130 220141 440282 1100705 2201410 2314342333 4628684666 11571711665 23143423330