Base | Representation |
---|---|
bin | 10110101100001… |
… | …100011011000101 |
3 | 222112022202020102 |
4 | 112230030123011 |
5 | 1234423341343 |
6 | 101435213445 |
7 | 12301521545 |
oct | 2654143305 |
9 | 875282212 |
10 | 380683973 |
11 | 18598255a |
12 | a75a7285 |
13 | 60b3a5b7 |
14 | 387b7325 |
15 | 2364a3b8 |
hex | 16b0c6c5 |
380683973 has 4 divisors (see below), whose sum is σ = 388783680. Its totient is φ = 372584268.
The previous prime is 380683967. The next prime is 380683993. The reversal of 380683973 is 379386083.
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, and also an emirpimes, since its reverse is a distinct semiprime: 379386083 = 193 ⋅1965731.
It is a cyclic number.
It is not a de Polignac number, because 380683973 - 26 = 380683909 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 8099659 = 380683973 / (3 + 8 + 0 + 6 + 8 + 3 + 9 + 7 + 3).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380683913) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4049783 + ... + 4049876.
It is an arithmetic number, because the mean of its divisors is an integer number (97195920).
Almost surely, 2380683973 is an apocalyptic number.
It is an amenable number.
380683973 is a deficient number, since it is larger than the sum of its proper divisors (8099707).
380683973 is an equidigital number, since it uses as much as digits as its factorization.
380683973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8099706.
The product of its (nonzero) digits is 653184, while the sum is 47.
The square root of 380683973 is about 19511.1243397196. The cubic root of 380683973 is about 724.7499561033.
The spelling of 380683973 in words is "three hundred eighty million, six hundred eighty-three thousand, nine hundred seventy-three".
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