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23143102142 = 2311093424549
BaseRepresentation
bin10101100011011011…
…111011011010111110
32012201212211101211012
4111203123323122332
5334344113232032
614344244555222
71446336056666
oct254333733276
965655741735
1023143102142
1198a67501a6
12459a6b2b12
13224a9144a4
1411978dd1a6
15906b7a6b2
hex5636fb6be

23143102142 has 16 divisors (see below), whose sum is σ = 36163248000. Its totient is φ = 11095535520.

The previous prime is 23143102079. The next prime is 23143102207. The reversal of 23143102142 is 24120134132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705517 + ... + 1719032.

It is an arithmetic number, because the mean of its divisors is an integer number (2260203000).

Almost surely, 223143102142 is an apocalyptic number.

23143102142 is a deficient number, since it is larger than the sum of its proper divisors (13020145858).

23143102142 is a wasteful number, since it uses less digits than its factorization.

23143102142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424691.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23143102142 its reverse (24120134132), we get a palindrome (47263236274).

The spelling of 23143102142 in words is "twenty-three billion, one hundred forty-three million, one hundred two thousand, one hundred forty-two".

Divisors: 1 2 31 62 109 218 3379 6758 3424549 6849098 106161019 212322038 373275841 746551682 11571551071 23143102142