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28060622898 = 2371160737279
BaseRepresentation
bin11010001000100010…
…110010000000110010
32200102121000100010120
4122020202302000302
5424432004413043
620520232311110
72012240234130
oct321042620062
980377010116
1028060622898
111099a543340
125531542496
132852655399
141502a50750
15ae373d983
hex6888b2032

28060622898 has 32 divisors (see below), whose sum is σ = 69969346560. Its totient is φ = 7288473360.

The previous prime is 28060622897. The next prime is 28060622899. The reversal of 28060622898 is 89822606082.

It is an interprime number because it is at equal distance from previous prime (28060622897) and next prime (28060622899).

It is a self number, because there is not a number n which added to its sum of digits gives 28060622898.

It is not an unprimeable number, because it can be changed into a prime (28060622897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30368178 + ... + 30369101.

It is an arithmetic number, because the mean of its divisors is an integer number (2186542080).

Almost surely, 228060622898 is an apocalyptic number.

28060622898 is an abundant number, since it is smaller than the sum of its proper divisors (41908723662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28060622898 is a wasteful number, since it uses less digits than its factorization.

28060622898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60737302.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 28060622898 in words is "twenty-eight billion, sixty million, six hundred twenty-two thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 60737279 121474558 182211837 364423674 425160953 668110069 850321906 1275482859 1336220138 2004330207 2550965718 4008660414 4676770483 9353540966 14030311449 28060622898