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223463641 = 555740213
BaseRepresentation
bin11010101000111…
…00100011011001
3120120111010111011
431110130203121
5424201314031
634101333521
75352260332
oct1524344331
9516433434
10223463641
111051595a5
1262a072a1
13373b110b
142196d289
15149416b1
hexd51c8d9

223463641 has 4 divisors (see below), whose sum is σ = 223509412. Its totient is φ = 223417872.

The previous prime is 223463629. The next prime is 223463659. The reversal of 223463641 is 146364322.

223463641 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.

It can be written as a sum of positive squares in 2 ways, for example, as 163942416 + 59521225 = 12804^2 + 7715^2 .

It is a cyclic number.

It is not a de Polignac number, because 223463641 - 29 = 223463129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223463671) 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, 14550 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (55877353).

Almost surely, 2223463641 is an apocalyptic number.

It is an amenable number.

223463641 is a deficient number, since it is larger than the sum of its proper divisors (45771).

223463641 is an equidigital number, since it uses as much as digits as its factorization.

223463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45770.

The product of its digits is 20736, while the sum is 31.

The square root of 223463641 is about 14948.7003113983. The cubic root of 223463641 is about 606.8326742828.

The spelling of 223463641 in words is "two hundred twenty-three million, four hundred sixty-three thousand, six hundred forty-one".

Divisors: 1 5557 40213 223463641