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23430013143 = 37810004381
BaseRepresentation
bin10101110100100010…
…011010000011010111
32020110212200222201120
4111310202122003113
5340441040410033
614432534255023
71456421553135
oct256442320327
966425628646
1023430013143
119a336a4729
12465a7b7473
1322951ab704
1411c3a66755
15921e511b3
hex57489a0d7

23430013143 has 4 divisors (see below), whose sum is σ = 31240017528. Its totient is φ = 15620008760.

The previous prime is 23430013121. The next prime is 23430013147. The reversal of 23430013143 is 34131003432.

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 23430013143 - 25 = 23430013111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430013147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905002188 + ... + 3905002193.

It is an arithmetic number, because the mean of its divisors is an integer number (7810004382).

Almost surely, 223430013143 is an apocalyptic number.

23430013143 is a deficient number, since it is larger than the sum of its proper divisors (7810004385).

23430013143 is an equidigital number, since it uses as much as digits as its factorization.

23430013143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810004384.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23430013143 its reverse (34131003432), we get a palindrome (57561016575).

The spelling of 23430013143 in words is "twenty-three billion, four hundred thirty million, thirteen thousand, one hundred forty-three".

Divisors: 1 3 7810004381 23430013143