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28858397840743 = 211433315865261
BaseRepresentation
bin1101000111111000111101…
…00011010101010101100111
310210011211120100211022221011
412203330132203111111213
512240303444321400433
6141213210455003051
76035644000215502
oct643743643252547
9123154510738834
1028858397840743
119216861276069
1232a0b4b069487
1313144486a0bc3
1471aa7aa1c139
15350a16d673cd
hex1a3f1e8d5567

28858397840743 has 8 divisors (see below), whose sum is σ = 29062131026096. Its totient is φ = 28655296387200.

The previous prime is 28858397840717. The next prime is 28858397840813. The reversal of 28858397840743 is 34704879385882.

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

It is a cyclic number.

It is not a de Polignac number, because 28858397840743 - 25 = 28858397840711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28858397840743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858397840443) 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, 157841268 + ... + 158023993.

It is an arithmetic number, because the mean of its divisors is an integer number (3632766378262).

Almost surely, 228858397840743 is an apocalyptic number.

28858397840743 is a deficient number, since it is larger than the sum of its proper divisors (203733185353).

28858397840743 is a wasteful number, since it uses less digits than its factorization.

28858397840743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315865905.

The product of its (nonzero) digits is 2601123840, while the sum is 76.

The spelling of 28858397840743 in words is "twenty-eight trillion, eight hundred fifty-eight billion, three hundred ninety-seven million, eight hundred forty thousand, seven hundred forty-three".

Divisors: 1 211 433 91363 315865261 66647570071 136769658013 28858397840743