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828955380 = 2235111255993
BaseRepresentation
bin110001011010001…
…101101011110100
32010202211022000010
4301122031223310
53144203033010
6214131220220
726354001351
oct6132155364
92122738003
10828955380
11395a184a0
121b1747670
13102980556
147c145628
154cb96620
hex3168daf4

828955380 has 48 divisors (see below), whose sum is σ = 2532083904. Its totient is φ = 200958720.

The previous prime is 828955373. The next prime is 828955381. The reversal of 828955380 is 83559828.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828955381) 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, 627337 + ... + 628656.

It is an arithmetic number, because the mean of its divisors is an integer number (52751748).

Almost surely, 2828955380 is an apocalyptic number.

It is an amenable number.

828955380 is an abundant number, since it is smaller than the sum of its proper divisors (1703128524).

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

828955380 is a wasteful number, since it uses less digits than its factorization.

828955380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256016 (or 1256014 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 828955380 is about 28791.5852290213. The cubic root of 828955380 is about 939.3852098860.

The spelling of 828955380 in words is "eight hundred twenty-eight million, nine hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 1255993 2511986 3767979 5023972 6279965 7535958 12559930 13815923 15071916 18839895 25119860 27631846 37679790 41447769 55263692 69079615 75359580 82895538 138159230 165791076 207238845 276318460 414477690 828955380