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828998080 = 2656833793
BaseRepresentation
bin110001011010011…
…000000111000000
32010202220110120121
4301122120013000
53144210414310
6214132150024
726354240011
oct6132300700
92122813517
10828998080
11395a47589
121b1768314
13102996b11
147c157008
154cba40da
hex316981c0

828998080 has 56 divisors (see below), whose sum is σ = 1977463152. Its totient is φ = 331026432.

The previous prime is 828998057. The next prime is 828998087. The reversal of 828998080 is 80899828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828998087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216664 + ... + 220456.

It is an arithmetic number, because the mean of its divisors is an integer number (35311842).

Almost surely, 2828998080 is an apocalyptic number.

828998080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 828998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988731576).

828998080 is an abundant number, since it is smaller than the sum of its proper divisors (1148465072).

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

828998080 is a wasteful number, since it uses less digits than its factorization.

828998080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 828998080 is about 28792.3267555785. The cubic root of 828998080 is about 939.4013390451.

The spelling of 828998080 in words is "eight hundred twenty-eight million, nine hundred ninety-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 683 1366 2732 3415 3793 5464 6830 7586 10928 13660 15172 18965 21856 27320 30344 37930 43712 54640 60688 75860 109280 121376 151720 218560 242752 303440 606880 1213760 2590619 5181238 10362476 12953095 20724952 25906190 41449904 51812380 82899808 103624760 165799616 207249520 414499040 828998080