Base | Representation |
---|---|
bin | 101001001000110… |
… | …0011110011101110 |
3 | 10120012100021102020 |
4 | 1102101203303232 |
5 | 10311331203310 |
6 | 344545211010 |
7 | 46130436540 |
oct | 12221436356 |
9 | 3505307366 |
10 | 1380334830 |
11 | 649187a96 |
12 | 326330a66 |
13 | 18cc84894 |
14 | d1473690 |
15 | 812ad170 |
hex | 52463cee |
1380334830 has 128 divisors (see below), whose sum is σ = 3999891456. Its totient is φ = 298166400.
The previous prime is 1380334807. The next prime is 1380334867. The reversal of 1380334830 is 384330831.
1380334830 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×13803348302 = 3810648485822257800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1380334791 and 1380334800.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277465 + ... + 282395.
It is an arithmetic number, because the mean of its divisors is an integer number (31249152).
Almost surely, 21380334830 is an apocalyptic number.
1380334830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1380334830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999945728).
1380334830 is an abundant number, since it is smaller than the sum of its proper divisors (2619556626).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380334830 is a wasteful number, since it uses less digits than its factorization.
1380334830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5022.
The product of its (nonzero) digits is 20736, while the sum is 33.
The square root of 1380334830 is about 37152.8576289900. The cubic root of 1380334830 is about 1113.4263173282.
The spelling of 1380334830 in words is "one billion, three hundred eighty million, three hundred thirty-four thousand, eight hundred thirty".
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