Base | Representation |
---|---|
bin | 10110101100100… |
… | …101100100111111 |
3 | 222112111222120111 |
4 | 112230211210333 |
5 | 1234440141012 |
6 | 101441330451 |
7 | 12302431126 |
oct | 2654454477 |
9 | 875458514 |
10 | 380787007 |
11 | 185a42a07 |
12 | a7636a27 |
13 | 60b75473 |
14 | 38802abd |
15 | 2366aba7 |
hex | 16b2593f |
380787007 has 4 divisors (see below), whose sum is σ = 382421520. Its totient is φ = 379152496.
The previous prime is 380786993. The next prime is 380787047. The reversal of 380787007 is 700787083.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 380787007 - 215 = 380754239 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 congruent number.
It is not an unprimeable number, because it can be changed into a prime (380787047) 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, 816907 + ... + 817372.
It is an arithmetic number, because the mean of its divisors is an integer number (95605380).
Almost surely, 2380787007 is an apocalyptic number.
380787007 is a deficient number, since it is larger than the sum of its proper divisors (1634513).
380787007 is a wasteful number, since it uses less digits than its factorization.
380787007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1634512.
The product of its (nonzero) digits is 65856, while the sum is 40.
The square root of 380787007 is about 19513.7645522334. The cubic root of 380787007 is about 724.8153359252.
The spelling of 380787007 in words is "three hundred eighty million, seven hundred eighty-seven thousand, seven".
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