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28210013668171 = 1072204691195837
BaseRepresentation
bin1100110101000001001111…
…10110000000001101001011
310200212211222100121122100101
412122200213312000031023
512144143101444340141
6135555300143550231
75641051302535036
oct632404766001513
9120784870548311
1028210013668171
118a96888311595
1231b73585bb377
13129826798b8aa
146d752c89c01d
1533dc1942d531
hex19a827d8034b

28210013668171 has 8 divisors (see below), whose sum is σ = 28473811616880. Its totient is φ = 27946218552288.

The previous prime is 28210013668147. The next prime is 28210013668181. The reversal of 28210013668171 is 17186631001282.

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 28210013668171 - 211 = 28210013666123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28210013668181) 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, 22992265 + ... + 24188101.

It is an arithmetic number, because the mean of its divisors is an integer number (3559226452110).

Almost surely, 228210013668171 is an apocalyptic number.

28210013668171 is a deficient number, since it is larger than the sum of its proper divisors (263797948709).

28210013668171 is a wasteful number, since it uses less digits than its factorization.

28210013668171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416413.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 28210013668171 in words is "twenty-eight trillion, two hundred ten billion, thirteen million, six hundred sixty-eight thousand, one hundred seventy-one".

Divisors: 1 107 220469 1195837 23590183 127954559 263644987553 28210013668171