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23800938093 = 326143353257
BaseRepresentation
bin10110001010101001…
…010111111001101101
32021102201122221002200
4112022221113321231
5342221020004333
614533424412113
71501544431032
oct261251277155
967381587080
1023800938093
11a104011079
124742a77039
132323cb002a
14121b01d389
159447bec13
hex58aa57e6d

23800938093 has 12 divisors (see below), whose sum is σ = 34942725948. Its totient is φ = 15607172160.

The previous prime is 23800938067. The next prime is 23800938097. The reversal of 23800938093 is 39083900832.

It can be written as a sum of positive squares in 2 ways, for example, as 3022580484 + 20778357609 = 54978^2 + 144147^2 .

It is not a de Polignac number, because 23800938093 - 25 = 23800938061 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23800938097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21676080 + ... + 21677177.

It is an arithmetic number, because the mean of its divisors is an integer number (2911893829).

Almost surely, 223800938093 is an apocalyptic number.

It is an amenable number.

23800938093 is a deficient number, since it is larger than the sum of its proper divisors (11141787855).

23800938093 is a wasteful number, since it uses less digits than its factorization.

23800938093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43353324 (or 43353321 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 23800938093 in words is "twenty-three billion, eight hundred million, nine hundred thirty-eight thousand, ninety-three".

Divisors: 1 3 9 61 183 549 43353257 130059771 390179313 2644548677 7933646031 23800938093