Base | Representation |
---|---|
bin | 10111000101000… |
… | …110110111101101 |
3 | 222222121112212222 |
4 | 113011012313231 |
5 | 1243111333304 |
6 | 102231205125 |
7 | 12411162131 |
oct | 2705066755 |
9 | 888545788 |
10 | 387214829 |
11 | 189633261 |
12 | a98167a5 |
13 | 622b6101 |
14 | 395d73c1 |
15 | 23eda4be |
hex | 17146ded |
387214829 has 4 divisors (see below), whose sum is σ = 387355776. Its totient is φ = 387073884.
The previous prime is 387214819. The next prime is 387214847. The reversal of 387214829 is 928412783.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-387214829 is a prime.
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 387214829.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (387214819) 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, 66269 + ... + 71874.
It is an arithmetic number, because the mean of its divisors is an integer number (96838944).
Almost surely, 2387214829 is an apocalyptic number.
It is an amenable number.
387214829 is a deficient number, since it is larger than the sum of its proper divisors (140947).
387214829 is a wasteful number, since it uses less digits than its factorization.
387214829 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 140946.
The product of its digits is 193536, while the sum is 44.
The square root of 387214829 is about 19677.7750012546. The cubic root of 387214829 is about 728.8709819767.
The spelling of 387214829 in words is "three hundred eighty-seven million, two hundred fourteen thousand, eight hundred twenty-nine".
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