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828244660 = 22541412233
BaseRepresentation
bin110001010111100…
…000001010110100
32010201111012002011
4301113200022310
53144012312120
6214104054004
726344651315
oct6127401264
92121435064
10828244660
11395582521
121b1464304
13102791bc9
147bddc60c
154caa5c5a
hex315e02b4

828244660 has 12 divisors (see below), whose sum is σ = 1739313828. Its totient is φ = 331297856.

The previous prime is 828244657. The next prime is 828244663. The reversal of 828244660 is 66442828.

It is an interprime number because it is at equal distance from previous prime (828244657) and next prime (828244663).

It can be written as a sum of positive squares in 2 ways, for example, as 325946916 + 502297744 = 18054^2 + 22412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828244663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20706097 + ... + 20706136.

It is an arithmetic number, because the mean of its divisors is an integer number (144942819).

Almost surely, 2828244660 is an apocalyptic number.

It is an amenable number.

828244660 is an abundant number, since it is smaller than the sum of its proper divisors (911069168).

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

828244660 is a wasteful number, since it uses less digits than its factorization.

828244660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41412242 (or 41412240 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 828244660 is about 28779.2400872573. The cubic root of 828244660 is about 939.1166667823.

The spelling of 828244660 in words is "eight hundred twenty-eight million, two hundred forty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 41412233 82824466 165648932 207061165 414122330 828244660