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395454545 = 579090909
BaseRepresentation
bin10111100100100…
…010100001010001
31000120010011122122
4113210202201101
51302214021140
6103123544025
712541210463
oct2744424121
91016104578
10395454545
11193250942
12b052b015
1363c0c695
143a740133
1524ab6ab5
hex17922851

395454545 has 4 divisors (see below), whose sum is σ = 474545460. Its totient is φ = 316363632.

The previous prime is 395454541. The next prime is 395454551. The reversal of 395454545 is 545454593.

395454545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 247369984 + 148084561 = 15728^2 + 12169^2 .

It is a cyclic number.

It is not a de Polignac number, because 395454545 - 22 = 395454541 is a prime.

It is a super-2 number, since 2×3954545452 = 312768594322314050, which contains 22 as substring.

395454545 is a modest number, since divided by 454545 gives 395 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 395454496 and 395454505.

It is not an unprimeable number, because it can be changed into a prime (395454541) 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, 39545450 + ... + 39545459.

It is an arithmetic number, because the mean of its divisors is an integer number (118636365).

Almost surely, 2395454545 is an apocalyptic number.

It is an amenable number.

395454545 is a deficient number, since it is larger than the sum of its proper divisors (79090915).

395454545 is an equidigital number, since it uses as much as digits as its factorization.

395454545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79090914.

The product of its digits is 1080000, while the sum is 44.

The square root of 395454545 is about 19886.0389469597. The cubic root of 395454545 is about 734.0047275271.

The spelling of 395454545 in words is "three hundred ninety-five million, four hundred fifty-four thousand, five hundred forty-five".

Divisors: 1 5 79090909 395454545