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810889050 = 235218129867
BaseRepresentation
bin110000010101010…
…010111101011010
32002111211102122210
4300111102331122
53130041422200
6212244055550
726044305006
oct6025227532
92074742583
10810889050
113867a8a44
121a76945b6
13cbcc630a
14799a1706
154b2c8650
hex30552f5a

810889050 has 48 divisors (see below), whose sum is σ = 2022183072. Its totient is φ = 215035200.

The previous prime is 810888997. The next prime is 810889067. The reversal of 810889050 is 50988018.

810889050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12217 + ... + 42083.

It is an arithmetic number, because the mean of its divisors is an integer number (42128814).

Almost surely, 2810889050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810889050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011091536).

810889050 is an abundant number, since it is smaller than the sum of its proper divisors (1211294022).

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

810889050 is a wasteful number, since it uses less digits than its factorization.

810889050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30063 (or 30058 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 810889050 is about 28476.1136744465. The cubic root of 810889050 is about 932.5106746233.

The spelling of 810889050 in words is "eight hundred ten million, eight hundred eighty-nine thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 181 362 543 905 1086 1810 2715 4525 5430 9050 13575 27150 29867 59734 89601 149335 179202 298670 448005 746675 896010 1493350 2240025 4480050 5405927 10811854 16217781 27029635 32435562 54059270 81088905 135148175 162177810 270296350 405444525 810889050