Base | Representation |
---|---|
bin | 10111100010111… |
… | …100110101011101 |
3 | 1000112100000022201 |
4 | 113202330311131 |
5 | 1302112204140 |
6 | 103111011501 |
7 | 12534524263 |
oct | 2742746535 |
9 | 1015300281 |
10 | 395038045 |
11 | 192a96a26 |
12 | b0369b91 |
13 | 63ac4c2c |
14 | 3a672433 |
15 | 24a3349a |
hex | 178bcd5d |
395038045 has 4 divisors (see below), whose sum is σ = 474045660. Its totient is φ = 316030432.
The previous prime is 395038043. The next prime is 395038093. The reversal of 395038045 is 540830593.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540830593 = 20947 ⋅25819.
It can be written as a sum of positive squares in 2 ways, for example, as 234610489 + 160427556 = 15317^2 + 12666^2 .
It is a cyclic number.
It is not a de Polignac number, because 395038045 - 21 = 395038043 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 395037995 and 395038013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (395038043) 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, 39503800 + ... + 39503809.
It is an arithmetic number, because the mean of its divisors is an integer number (118511415).
Almost surely, 2395038045 is an apocalyptic number.
It is an amenable number.
395038045 is a deficient number, since it is larger than the sum of its proper divisors (79007615).
395038045 is an equidigital number, since it uses as much as digits as its factorization.
395038045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79007614.
The product of its (nonzero) digits is 64800, while the sum is 37.
The square root of 395038045 is about 19875.5640171543. The cubic root of 395038045 is about 733.7469479136.
The spelling of 395038045 in words is "three hundred ninety-five million, thirty-eight thousand, forty-five".
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