Base | Representation |
---|---|
bin | 100111011001001… |
… | …1010011001101110 |
3 | 10102010021100010000 |
4 | 1032302122121232 |
5 | 10201342310230 |
6 | 335055325130 |
7 | 44520303441 |
oct | 11662323156 |
9 | 3363240100 |
10 | 1321838190 |
11 | 619163662 |
12 | 30a8207a6 |
13 | 180b12c9a |
14 | c77a7658 |
15 | 7b0a5b60 |
hex | 4ec9a66e |
1321838190 has 40 divisors (see below), whose sum is σ = 3554278200. Its totient is φ = 352489968.
The previous prime is 1321838173. The next prime is 1321838201. The reversal of 1321838190 is 918381231.
It is a super-2 number, since 2×13218381902 = 3494512401084952200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 815140 + ... + 816759.
It is an arithmetic number, because the mean of its divisors is an integer number (88856955).
Almost surely, 21321838190 is an apocalyptic number.
1321838190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1321838190 is an abundant number, since it is smaller than the sum of its proper divisors (2232440010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1321838190 is a wasteful number, since it uses less digits than its factorization.
1321838190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1631918 (or 1631909 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 36.
The square root of 1321838190 is about 36357.0927055506. The cubic root of 1321838190 is about 1097.4702721109.
The spelling of 1321838190 in words is "one billion, three hundred twenty-one million, eight hundred thirty-eight thousand, one hundred ninety".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •