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6225609161 = 6697392957
BaseRepresentation
bin1011100110001001…
…10100000111001001
3121001212120201021002
411303010310013021
5100222223443121
62505432224345
7310163543012
oct56304640711
917055521232
106225609161
112705215342
121258b3b0b5
13782a4b605
14430b7a009
1526684ee0b
hex1731341c9

6225609161 has 4 divisors (see below), whose sum is σ = 6225769092. Its totient is φ = 6225449232.

The previous prime is 6225609127. The next prime is 6225609163. The reversal of 6225609161 is 1619065226.

6225609161 is digitally balanced in base 3, 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1539385225 + 4686223936 = 39235^2 + 68456^2 .

It is a cyclic number.

It is not a de Polignac number, because 6225609161 - 26 = 6225609097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6225609163) 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, 20495 + ... + 113451.

It is an arithmetic number, because the mean of its divisors is an integer number (1556442273).

Almost surely, 26225609161 is an apocalyptic number.

It is an amenable number.

6225609161 is a deficient number, since it is larger than the sum of its proper divisors (159931).

6225609161 is an equidigital number, since it uses as much as digits as its factorization.

6225609161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159930.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 6225609161 is about 78902.5294968419. The cubic root of 6225609161 is about 1839.6164489801.

The spelling of 6225609161 in words is "six billion, two hundred twenty-five million, six hundred nine thousand, one hundred sixty-one".

Divisors: 1 66973 92957 6225609161