Base | Representation |
---|---|
bin | 101001001000101… |
… | …1000100100011111 |
3 | 10120012020221021101 |
4 | 1102101120210133 |
5 | 10311323220144 |
6 | 344544213531 |
7 | 46130155411 |
oct | 12221304437 |
9 | 3505227241 |
10 | 1380288799 |
11 | 64915644a |
12 | 32630a2a7 |
13 | 18cc69946 |
14 | d14609b1 |
15 | 8129e6d4 |
hex | 5245891f |
1380288799 has 2 divisors, whose sum is σ = 1380288800. Its totient is φ = 1380288798.
The previous prime is 1380288797. The next prime is 1380288851. The reversal of 1380288799 is 9978820831.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1380288799 - 21 = 1380288797 is a prime.
Together with 1380288797, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1380288797) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690144399 + 690144400.
It is an arithmetic number, because the mean of its divisors is an integer number (690144400).
Almost surely, 21380288799 is an apocalyptic number.
1380288799 is a deficient number, since it is larger than the sum of its proper divisors (1).
1380288799 is an equidigital number, since it uses as much as digits as its factorization.
1380288799 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1741824, while the sum is 55.
The square root of 1380288799 is about 37152.2381425399. The cubic root of 1380288799 is about 1113.4139404528.
The spelling of 1380288799 in words is "one billion, three hundred eighty million, two hundred eighty-eight thousand, seven hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •