Base | Representation |
---|---|
bin | 1011111010000001001 |
3 | 201211012010 |
4 | 1133100021 |
5 | 44441103 |
6 | 12210133 |
7 | 3213321 |
oct | 1372011 |
9 | 654163 |
10 | 390153 |
11 | 247145 |
12 | 169949 |
13 | 10877a |
14 | a2281 |
15 | 7a903 |
hex | 5f409 |
390153 has 4 divisors (see below), whose sum is σ = 520208. Its totient is φ = 260100.
The previous prime is 390151. The next prime is 390157. The reversal of 390153 is 351093.
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 not a de Polignac number, because 390153 - 21 = 390151 is a prime.
It is a D-number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (390151) 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, 65023 + ... + 65028.
It is an arithmetic number, because the mean of its divisors is an integer number (130052).
2390153 is an apocalyptic number.
It is an amenable number.
390153 is a deficient number, since it is larger than the sum of its proper divisors (130055).
390153 is a wasteful number, since it uses less digits than its factorization.
390153 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130054.
The product of its (nonzero) digits is 405, while the sum is 21.
The square root of 390153 is about 624.6222858656. The cubic root of 390153 is about 73.0709886793.
Subtracting from 390153 its reverse (351093), we obtain a triangular number (39060 = T279).
The spelling of 390153 in words is "three hundred ninety thousand, one hundred fifty-three".
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