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223433401 = 523342697
BaseRepresentation
bin11010101000101…
…01001010111001
3120120102121000011
431110111022321
5424144332101
634100541521
75352103222
oct1524251271
9516377004
10223433401
11105138904
12629b18a1
13373a0419
1421962249
1514937751
hexd5152b9

223433401 has 4 divisors (see below), whose sum is σ = 223481332. Its totient is φ = 223385472.

The previous prime is 223433393. The next prime is 223433447. The reversal of 223433401 is 104334322.

It is a happy number.

223433401 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 132250000 + 91183401 = 11500^2 + 9549^2 .

It is a cyclic number.

It is not a de Polignac number, because 223433401 - 23 = 223433393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223433501) 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, 16116 + ... + 26581.

It is an arithmetic number, because the mean of its divisors is an integer number (55870333).

Almost surely, 2223433401 is an apocalyptic number.

It is an amenable number.

223433401 is a deficient number, since it is larger than the sum of its proper divisors (47931).

223433401 is an equidigital number, since it uses as much as digits as its factorization.

223433401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47930.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 223433401 is about 14947.6888180080. The cubic root of 223433401 is about 606.8053000341.

Adding to 223433401 its reverse (104334322), we get a palindrome (327767723).

The spelling of 223433401 in words is "two hundred twenty-three million, four hundred thirty-three thousand, four hundred one".

Divisors: 1 5233 42697 223433401