Base | Representation |
---|---|
bin | 10110101110001… |
… | …100001110101001 |
3 | 222120022100100000 |
4 | 112232030032221 |
5 | 1240042114330 |
6 | 101454333213 |
7 | 12306132012 |
oct | 2656141651 |
9 | 876270300 |
10 | 381207465 |
11 | 1861aa8a1 |
12 | a77ba209 |
13 | 60c91962 |
14 | 388b2009 |
15 | 23700560 |
hex | 16b8c3a9 |
381207465 has 96 divisors (see below), whose sum is σ = 733824000. Its totient is φ = 189423360.
The previous prime is 381207443. The next prime is 381207467. The reversal of 381207465 is 564702183.
It is not a de Polignac number, because 381207465 - 25 = 381207433 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (381207467) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1092111 + ... + 1092459.
It is an arithmetic number, because the mean of its divisors is an integer number (7644000).
Almost surely, 2381207465 is an apocalyptic number.
It is an amenable number.
381207465 is a deficient number, since it is larger than the sum of its proper divisors (352616535).
381207465 is a wasteful number, since it uses less digits than its factorization.
381207465 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 429 (or 417 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 36.
The square root of 381207465 is about 19524.5349496473. The cubic root of 381207465 is about 725.0820137106.
The spelling of 381207465 in words is "three hundred eighty-one million, two hundred seven thousand, four hundred sixty-five".
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