Base | Representation |
---|---|
bin | 101000010110111… |
… | …0010110011101100 |
3 | 10111101010120022000 |
4 | 1100231302303230 |
5 | 10233132304433 |
6 | 342212452300 |
7 | 45362233044 |
oct | 12055626354 |
9 | 3441116260 |
10 | 1354181868 |
11 | 635444976 |
12 | 31961a090 |
13 | 187728960 |
14 | cbbc6724 |
15 | 7dd44113 |
hex | 50b72cec |
1354181868 has 48 divisors (see below), whose sum is σ = 3780910560. Its totient is φ = 416670912.
The previous prime is 1354181867. The next prime is 1354181911. The reversal of 1354181868 is 8681814531.
It is not an unprimeable number, because it can be changed into a prime (1354181861) 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, 480855 + ... + 483662.
It is an arithmetic number, because the mean of its divisors is an integer number (78768970).
Almost surely, 21354181868 is an apocalyptic number.
1354181868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1354181868 is an abundant number, since it is smaller than the sum of its proper divisors (2426728692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1354181868 is a wasteful number, since it uses less digits than its factorization.
1354181868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 964543 (or 964535 counting only the distinct ones).
The product of its digits is 184320, while the sum is 45.
The square root of 1354181868 is about 36799.2101545672. The cubic root of 1354181868 is about 1106.3494683327.
The spelling of 1354181868 in words is "one billion, three hundred fifty-four million, one hundred eighty-one thousand, eight hundred sixty-eight".
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