Base | Representation |
---|---|
bin | 101001010000101… |
… | …1111110110001011 |
3 | 10120111012112122211 |
4 | 1102201133312023 |
5 | 10313413403112 |
6 | 345214525551 |
7 | 46211110531 |
oct | 12241376613 |
9 | 3514175584 |
10 | 1384512907 |
11 | 650581048 |
12 | 3278068b7 |
13 | 190ab850b |
14 | d1c40151 |
15 | 818360a7 |
hex | 5285fd8b |
1384512907 has 4 divisors (see below), whose sum is σ = 1384588296. Its totient is φ = 1384437520.
The previous prime is 1384512889. The next prime is 1384512959. The reversal of 1384512907 is 7092154831.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1384512907 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1384512907.
It is not an unprimeable number, because it can be changed into a prime (1384518907) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 9807 + ... + 53527.
It is an arithmetic number, because the mean of its divisors is an integer number (346147074).
Almost surely, 21384512907 is an apocalyptic number.
1384512907 is a deficient number, since it is larger than the sum of its proper divisors (75389).
1384512907 is an equidigital number, since it uses as much as digits as its factorization.
1384512907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75388.
The product of its (nonzero) digits is 60480, while the sum is 40.
The square root of 1384512907 is about 37209.0433497020. The cubic root of 1384512907 is about 1114.5485800903.
The spelling of 1384512907 in words is "one billion, three hundred eighty-four million, five hundred twelve thousand, nine hundred seven".
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