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28079743343719 = 793487110192991
BaseRepresentation
bin1100110001001110100110…
…01000001001110001100111
310200102101201121000111021211
412120213103020021301213
512140024303243444334
6135415353410452251
75625460134205534
oct630472310116147
9120371647014254
1028079743343719
118a46609097721
123196061294087
131288ba6aa9682
146d10d1545d8b
1533a6429bda64
hex1989d3209c67

28079743343719 has 8 divisors (see below), whose sum is σ = 28436001361920. Its totient is φ = 27723505781400.

The previous prime is 28079743343693. The next prime is 28079743343767. The reversal of 28079743343719 is 91734334797082.

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 28079743343719 - 233 = 28071153409127 is a prime.

It is a super-2 number, since 2×280797433437192 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28079743343779) 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, 2341687 + ... + 7851304.

It is an arithmetic number, because the mean of its divisors is an integer number (3554500170240).

Almost surely, 228079743343719 is an apocalyptic number.

28079743343719 is a deficient number, since it is larger than the sum of its proper divisors (356258018201).

28079743343719 is a wasteful number, since it uses less digits than its factorization.

28079743343719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227941.

The product of its (nonzero) digits is 192036096, while the sum is 67.

The spelling of 28079743343719 in words is "twenty-eight trillion, seventy-nine billion, seven hundred forty-three million, three hundred forty-three thousand, seven hundred nineteen".

Divisors: 1 79 34871 2754809 10192991 805246289 355439789161 28079743343719