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28863144010423 = 231373913998037
BaseRepresentation
bin1101001000000001110010…
…11100100010001010110111
310210012021211010120201202101
412210000321130202022313
512240343204331313143
6141215313441522531
76036202421046052
oct644007134421267
9123167733521671
1028863144010423
119218877373648
1232a1a54643447
131314a23a78828
1471adab0c7a99
15350be387eb4d
hex1a40397222b7

28863144010423 has 8 divisors (see below), whose sum is σ = 30139999301088. Its totient is φ = 27588116718624.

The previous prime is 28863144010367. The next prime is 28863144010439. The reversal of 28863144010423 is 32401044136882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28863144010423 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 (28863144010453) 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, 456967440 + ... + 457030597.

It is an arithmetic number, because the mean of its divisors is an integer number (3767499912636).

Almost surely, 228863144010423 is an apocalyptic number.

28863144010423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28863144010423 is a deficient number, since it is larger than the sum of its proper divisors (1276855290665).

28863144010423 is a wasteful number, since it uses less digits than its factorization.

28863144010423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913999433.

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 28863144010423 in words is "twenty-eight trillion, eight hundred sixty-three billion, one hundred forty-four million, ten thousand, four hundred twenty-three".

Divisors: 1 23 1373 31579 913998037 21021954851 1254919304801 28863144010423