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23807448289 = 55742742277
BaseRepresentation
bin10110001011000010…
…001101010011100001
32021110011220200102001
4112023002031103201
5342224201321124
614534220124001
71501653654142
oct261302152341
967404820361
1023807448289
11a1077582a9
124745096601
13232544c311
14121bc35ac9
15945158b44
hex58b08d4e1

23807448289 has 4 divisors (see below), whose sum is σ = 23850191124. Its totient is φ = 23764705456.

The previous prime is 23807448277. The next prime is 23807448349. The reversal of 23807448289 is 98284470832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2151382689 + 21656065600 = 46383^2 + 147160^2 .

It is a cyclic number.

It is not a de Polignac number, because 23807448289 - 229 = 23270577377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23807458289) 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, 21370582 + ... + 21371695.

It is an arithmetic number, because the mean of its divisors is an integer number (5962547781).

Almost surely, 223807448289 is an apocalyptic number.

It is an amenable number.

23807448289 is a deficient number, since it is larger than the sum of its proper divisors (42742835).

23807448289 is an equidigital number, since it uses as much as digits as its factorization.

23807448289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42742834.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 23807448289 in words is "twenty-three billion, eight hundred seven million, four hundred forty-eight thousand, two hundred eighty-nine".

Divisors: 1 557 42742277 23807448289