Base | Representation |
---|---|
bin | 101000110001101… |
… | …0000101111000000 |
3 | 10112100111122220222 |
4 | 1101203100233000 |
5 | 10300224314310 |
6 | 343433122212 |
7 | 45622330454 |
oct | 12143205700 |
9 | 3470448828 |
10 | 1368198080 |
11 | 642348517 |
12 | 322259368 |
13 | 18a5c5582 |
14 | cd9d4664 |
15 | 801b2055 |
hex | 518d0bc0 |
1368198080 has 112 divisors (see below), whose sum is σ = 3530498400. Its totient is φ = 503021568.
The previous prime is 1368198071. The next prime is 1368198107. The reversal of 1368198080 is 808918631.
It is a happy number.
It is a super-2 number, since 2×13681980802 = 3743931972231372800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230996 + ... + 236844.
Almost surely, 21368198080 is an apocalyptic number.
1368198080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1368198080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1765249200).
1368198080 is an abundant number, since it is smaller than the sum of its proper divisors (2162300320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1368198080 is a wasteful number, since it uses less digits than its factorization.
1368198080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5926 (or 5916 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 44.
The square root of 1368198080 is about 36989.1616558148. The cubic root of 1368198080 is about 1110.1533970834.
The spelling of 1368198080 in words is "one billion, three hundred sixty-eight million, one hundred ninety-eight thousand, eighty".
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