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223022381 = 435419587
BaseRepresentation
bin11010100101100…
…00110100101101
3120112122201012012
431102300310231
5424043204011
634044051005
75345442011
oct1522606455
9515581165
10223022381
1110498801a
1262833a65
133728830a
1421896541
15148a5a8b
hexd4b0d2d

223022381 has 8 divisors (see below), whose sum is σ = 228654624. Its totient is φ = 217410480.

The previous prime is 223022377. The next prime is 223022407. The reversal of 223022381 is 183220322.

223022381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223022381 - 22 = 223022377 is a prime.

It is a super-2 number, since 2×2230223812 = 99477964853818322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223022311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18470 + ... + 28056.

It is an arithmetic number, because the mean of its divisors is an integer number (28581828).

Almost surely, 2223022381 is an apocalyptic number.

It is an amenable number.

223022381 is a deficient number, since it is larger than the sum of its proper divisors (5632243).

223022381 is an equidigital number, since it uses as much as digits as its factorization.

223022381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 223022381 is about 14933.9338755734. The cubic root of 223022381 is about 606.4329859509.

The spelling of 223022381 in words is "two hundred twenty-three million, twenty-two thousand, three hundred eighty-one".

Divisors: 1 43 541 9587 23263 412241 5186567 223022381