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229020361 = 239957407
BaseRepresentation
bin11011010011010…
…01001011001001
3120221221102212121
431221221023021
5432112122421
634420411241
75450432563
oct1551511311
9527842777
10229020361
11108304429
1264846b21
13385a840b
14225b8333
151518cd41
hexda692c9

229020361 has 4 divisors (see below), whose sum is σ = 238977792. Its totient is φ = 219062932.

The previous prime is 229020353. The next prime is 229020371. The reversal of 229020361 is 163020922.

It is a happy number.

229020361 is digitally balanced in base 2, 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 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 229020361 - 23 = 229020353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229020371) 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, 4978681 + ... + 4978726.

It is an arithmetic number, because the mean of its divisors is an integer number (59744448).

Almost surely, 2229020361 is an apocalyptic number.

It is an amenable number.

229020361 is a deficient number, since it is larger than the sum of its proper divisors (9957431).

229020361 is an equidigital number, since it uses as much as digits as its factorization.

229020361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957430.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 229020361 is about 15133.4186818445. The cubic root of 229020361 is about 611.8214490805.

The spelling of 229020361 in words is "two hundred twenty-nine million, twenty thousand, three hundred sixty-one".

Divisors: 1 23 9957407 229020361