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868814080 = 285678761
BaseRepresentation
bin110011110010010…
…000110100000000
32020112211022212021
4303302100310000
53234404022310
6222113411224
730346540441
oct6362206400
92215738767
10868814080
11406471972
12202b69b14
1310acc7994
148355d2c8
155141b5da
hex33c90d00

868814080 has 36 divisors (see below), whose sum is σ = 2081084292. Its totient is φ = 347525120.

The previous prime is 868814077. The next prime is 868814119. The reversal of 868814080 is 80418868.

It can be written as a sum of positive squares in 2 ways, for example, as 299705344 + 569108736 = 17312^2 + 23856^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 338101 + ... + 340660.

It is an arithmetic number, because the mean of its divisors is an integer number (57807897).

Almost surely, 2868814080 is an apocalyptic number.

868814080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868814080 is an abundant number, since it is smaller than the sum of its proper divisors (1212270212).

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

868814080 is an equidigital number, since it uses as much as digits as its factorization.

868814080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678782 (or 678768 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 868814080 is about 29475.6523252667. The cubic root of 868814080 is about 954.2063085641.

The spelling of 868814080 in words is "eight hundred sixty-eight million, eight hundred fourteen thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 678761 1357522 2715044 3393805 5430088 6787610 10860176 13575220 21720352 27150440 43440704 54300880 86881408 108601760 173762816 217203520 434407040 868814080