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28689600014 = 274871915961
BaseRepresentation
bin11010101110000010…
…001000111000001110
32202001102112200112022
4122232002020320032
5432224014200024
621102501410142
72033645401505
oct325602107016
982042480468
1028689600014
1111192593139
125688109952
132922a584aa
1415623bb83c
15b2da8235e
hex6ae088e0e

28689600014 has 8 divisors (see below), whose sum is σ = 43040170368. Its totient is φ = 14342876560.

The previous prime is 28689599989. The next prime is 28689600019. The reversal of 28689600014 is 41000698682.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28689600019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943007 + ... + 972954.

It is an arithmetic number, because the mean of its divisors is an integer number (5380021296).

Almost surely, 228689600014 is an apocalyptic number.

28689600014 is a deficient number, since it is larger than the sum of its proper divisors (14350570354).

28689600014 is a wasteful number, since it uses less digits than its factorization.

28689600014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923450.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 28689600014 in words is "twenty-eight billion, six hundred eighty-nine million, six hundred thousand, fourteen".

Divisors: 1 2 7487 14974 1915961 3831922 14344800007 28689600014