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223230838 = 2111615419
BaseRepresentation
bin11010100111000…
…11101101110110
3120120001022010211
431103203231312
5424121341323
634052340034
75350300525
oct1523435566
9516038124
10223230838
1110500a6a6
126291461a
133732c16c
142190c4bc
15148e770d
hexd4e3b76

223230838 has 4 divisors (see below), whose sum is σ = 334846260. Its totient is φ = 111615418.

The previous prime is 223230827. The next prime is 223230841. The reversal of 223230838 is 838032322.

It is a happy number.

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

It is a super-3 number, since 3×2232308383 (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55807708 + ... + 55807711.

It is an arithmetic number, because the mean of its divisors is an integer number (83711565).

Almost surely, 2223230838 is an apocalyptic number.

223230838 is a deficient number, since it is larger than the sum of its proper divisors (111615422).

223230838 is a wasteful number, since it uses less digits than its factorization.

223230838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111615421.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 223230838 is about 14940.9115518431. The cubic root of 223230838 is about 606.6218695873.

The spelling of 223230838 in words is "two hundred twenty-three million, two hundred thirty thousand, eight hundred thirty-eight".

Divisors: 1 2 111615419 223230838