Base | Representation |
---|---|
bin | 111111101010011… |
… | …111000111001010 |
3 | 2202102211012121200 |
4 | 333222133013022 |
5 | 4141413231330 |
6 | 253553045030 |
7 | 35316501156 |
oct | 7752370712 |
9 | 2672735550 |
10 | 1068102090 |
11 | 4a8a08a00 |
12 | 259856776 |
13 | 140392b93 |
14 | a1bd8066 |
15 | 63b84a60 |
hex | 3fa9f1ca |
1068102090 has 72 divisors (see below), whose sum is σ = 3052508004. Its totient is φ = 258931200.
The previous prime is 1068102073. The next prime is 1068102097. The reversal of 1068102090 is 902018601.
It can be written as a sum of positive squares in 2 ways, for example, as 927750681 + 140351409 = 30459^2 + 11847^2 .
It is a super-2 number, since 2×10681020902 = 2281684149324736200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1068102097) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38151 + ... + 59930.
Almost surely, 21068102090 is an apocalyptic number.
1068102090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1068102090 is an abundant number, since it is smaller than the sum of its proper divisors (1984405914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1068102090 is a wasteful number, since it uses less digits than its factorization.
1068102090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98116 (or 98102 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 27.
The square root of 1068102090 is about 32681.8311910456. The cubic root of 1068102090 is about 1022.2040287711.
It can be divided in two parts, 106810 and 2090, that added together give a square (108900 = 3302).
The spelling of 1068102090 in words is "one billion, sixty-eight million, one hundred two thousand, ninety".
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