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28813038233 = 712301334619
BaseRepresentation
bin11010110101011001…
…000001001010011001
32202101000210222221012
4122311121001022121
5433002114210413
621123031223305
72040004532630
oct326531011231
982330728835
1028813038233
11112462330a1
125701517b35
1329424b7365
141574950517
15b398167a8
hex6b5641299

28813038233 has 8 divisors (see below), whose sum is σ = 32931961920. Its totient is φ = 24694808400.

The previous prime is 28813038227. The next prime is 28813038277. The reversal of 28813038233 is 33283031882.

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 28813038233 - 214 = 28813021849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28813038283) 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, 81203 + ... + 253416.

It is an arithmetic number, because the mean of its divisors is an integer number (4116495240).

Almost surely, 228813038233 is an apocalyptic number.

It is an amenable number.

28813038233 is a deficient number, since it is larger than the sum of its proper divisors (4118923687).

28813038233 is a wasteful number, since it uses less digits than its factorization.

28813038233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346927.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 28813038233 in words is "twenty-eight billion, eight hundred thirteen million, thirty-eight thousand, two hundred thirty-three".

Divisors: 1 7 12301 86107 334619 2342333 4116148319 28813038233