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23032002143 = 74113107813
BaseRepresentation
bin10101011100110100…
…000111011001011111
32012110010202221021102
4111130310013121133
5334132143032033
614325235423315
71443516534203
oct253464073137
965403687242
1023032002143
119849a68117
124569454b3b
1322308b5547
141186c5cb03
158ec031de8
hex55cd0765f

23032002143 has 4 divisors (see below), whose sum is σ = 23035117368. Its totient is φ = 23028886920.

The previous prime is 23032002139. The next prime is 23032002163. The reversal of 23032002143 is 34120023032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23032002143 - 22 = 23032002139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032002163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546496 + ... + 1561317.

It is an arithmetic number, because the mean of its divisors is an integer number (5758779342).

Almost surely, 223032002143 is an apocalyptic number.

23032002143 is a deficient number, since it is larger than the sum of its proper divisors (3115225).

23032002143 is an equidigital number, since it uses as much as digits as its factorization.

23032002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115224.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23032002143 its reverse (34120023032), we get a palindrome (57152025175).

The spelling of 23032002143 in words is "twenty-three billion, thirty-two million, two thousand, one hundred forty-three".

Divisors: 1 7411 3107813 23032002143