Base | Representation |
---|---|
bin | 101000110010000… |
… | …0111011110001000 |
3 | 10112100221001110200 |
4 | 1101210013132020 |
5 | 10300304003110 |
6 | 343442012200 |
7 | 45624253221 |
oct | 12144073610 |
9 | 3470831420 |
10 | 1368422280 |
11 | 642490a05 |
12 | 322347060 |
13 | 18a673634 |
14 | cda52248 |
15 | 802086c0 |
hex | 51907788 |
1368422280 has 48 divisors (see below), whose sum is σ = 4447373580. Its totient is φ = 364912512.
The previous prime is 1368422213. The next prime is 1368422287. The reversal of 1368422280 is 822248631.
It can be written as a sum of positive squares in 2 ways, for example, as 1137443076 + 230979204 = 33726^2 + 15198^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1368422287) 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 11 ways as a sum of consecutive naturals, for example, 1900227 + ... + 1900946.
Almost surely, 21368422280 is an apocalyptic number.
1368422280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1368422280 is an abundant number, since it is smaller than the sum of its proper divisors (3078951300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1368422280 is a wasteful number, since it uses less digits than its factorization.
1368422280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3801190 (or 3801183 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 36.
The square root of 1368422280 is about 36992.1921491549. The cubic root of 1368422280 is about 1110.2140322602.
The spelling of 1368422280 in words is "one billion, three hundred sixty-eight million, four hundred twenty-two thousand, two hundred eighty".
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