Base | Representation |
---|---|
bin | 10111010111101… |
… | …101010000010001 |
3 | 1000022210021020121 |
4 | 113113231100101 |
5 | 1300333400031 |
6 | 102523510241 |
7 | 12500500255 |
oct | 2727552021 |
9 | 1008707217 |
10 | 392090641 |
11 | 191363558 |
12 | ab388381 |
13 | 633024c7 |
14 | 3a106265 |
15 | 24650011 |
hex | 175ed411 |
392090641 has 4 divisors (see below), whose sum is σ = 401209072. Its totient is φ = 382972212.
The previous prime is 392090639. The next prime is 392090687. The reversal of 392090641 is 146090293.
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 not a de Polignac number, because 392090641 - 21 = 392090639 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 392090597 and 392090606.
It is not an unprimeable number, because it can be changed into a prime (392093641) 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, 4559151 + ... + 4559236.
It is an arithmetic number, because the mean of its divisors is an integer number (100302268).
Almost surely, 2392090641 is an apocalyptic number.
It is an amenable number.
392090641 is a deficient number, since it is larger than the sum of its proper divisors (9118431).
392090641 is an equidigital number, since it uses as much as digits as its factorization.
392090641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9118430.
The product of its (nonzero) digits is 11664, while the sum is 34.
The square root of 392090641 is about 19801.2787718369. The cubic root of 392090641 is about 731.9175463528.
The spelling of 392090641 in words is "three hundred ninety-two million, ninety thousand, six hundred forty-one".
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