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28027622807 = 142730796379
BaseRepresentation
bin11010000110100100…
…111001010110010111
32200100021220202111222
4122012210321112113
5424400032412212
620513053120555
72011356602012
oct320644712627
980307822458
1028027622807
1110982953938
12552248915b
13284886c9c2
1414dc500379
15ae08c0c72
hex686939597

28027622807 has 8 divisors (see below), whose sum is σ = 28060771200. Its totient is φ = 27994496184.

The previous prime is 28027622797. The next prime is 28027622827. The reversal of 28027622807 is 70822672082.

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 28027622807 - 26 = 28027622743 is a prime.

It is a super-2 number, since 2×280276228072 (a number of 22 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 (28027622827) 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, 4390544 + ... + 4396922.

It is an arithmetic number, because the mean of its divisors is an integer number (3507596400).

Almost surely, 228027622807 is an apocalyptic number.

28027622807 is a deficient number, since it is larger than the sum of its proper divisors (33148393).

28027622807 is a wasteful number, since it uses less digits than its factorization.

28027622807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10885.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 28027622807 in words is "twenty-eight billion, twenty-seven million, six hundred twenty-two thousand, eight hundred seven".

Divisors: 1 1427 3079 6379 4393733 9102833 19640941 28027622807