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28902357066 = 2311437914501
BaseRepresentation
bin11010111010101101…
…101111100001001010
32202121020212212100010
4122322231233201022
5433143000411231
621135541452350
72042140660452
oct327255574112
982536785303
1028902357066
1111291699710
1257274110b6
132957b5b23b
141582760d62
15b425ab546
hex6bab6f84a

28902357066 has 16 divisors (see below), whose sum is σ = 63059688288. Its totient is φ = 8758290000.

The previous prime is 28902357041. The next prime is 28902357073. The reversal of 28902357066 is 66075320982.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218957185 + ... + 218957316.

It is an arithmetic number, because the mean of its divisors is an integer number (3941230518).

Almost surely, 228902357066 is an apocalyptic number.

28902357066 is an abundant number, since it is smaller than the sum of its proper divisors (34157331222).

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

28902357066 is a wasteful number, since it uses less digits than its factorization.

28902357066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437914517.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 28902357066 in words is "twenty-eight billion, nine hundred two million, three hundred fifty-seven thousand, sixty-six".

Divisors: 1 2 3 6 11 22 33 66 437914501 875829002 1313743503 2627487006 4817059511 9634119022 14451178533 28902357066