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28829455199 = 125472297717
BaseRepresentation
bin11010110110010111…
…101001001101011111
32202102011201001202222
4122312113221031133
5433020320031244
621124415135555
72040264216536
oct326627511537
982364631688
1028829455199
1111254526436
125706b145bb
132945a1493c
141576bc531d
15b3aeaabee
hex6b65e935f

28829455199 has 4 divisors (see below), whose sum is σ = 28831765464. Its totient is φ = 28827144936.

The previous prime is 28829455189. The next prime is 28829455217. The reversal of 28829455199 is 99155492882.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28829455199 - 24 = 28829455183 is a prime.

It is a super-2 number, since 2×288294551992 (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 (28829455189) 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, 1136312 + ... + 1161405.

It is an arithmetic number, because the mean of its divisors is an integer number (7207941366).

Almost surely, 228829455199 is an apocalyptic number.

28829455199 is a deficient number, since it is larger than the sum of its proper divisors (2310265).

28829455199 is a wasteful number, since it uses less digits than its factorization.

28829455199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310264.

The product of its digits is 18662400, while the sum is 62.

The spelling of 28829455199 in words is "twenty-eight billion, eight hundred twenty-nine million, four hundred fifty-five thousand, one hundred ninety-nine".

Divisors: 1 12547 2297717 28829455199