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223674685 = 5133441149
BaseRepresentation
bin11010101010100…
…00000100111101
3120120212211222121
431111100010331
5424230042220
634110042541
75354126533
oct1525200475
9516784877
10223674685
11105293113
1262aa9451
13374561b0
14219c6153
1514983eaa
hexd55013d

223674685 has 8 divisors (see below), whose sum is σ = 289056600. Its totient is φ = 165175104.

The previous prime is 223674679. The next prime is 223674713. The reversal of 223674685 is 586476322.

It can be written as a sum of positive squares in 4 ways, for example, as 5285401 + 218389284 = 2299^2 + 14778^2 .

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 223674685 - 25 = 223674653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720510 + ... + 1720639.

It is an arithmetic number, because the mean of its divisors is an integer number (36132075).

Almost surely, 2223674685 is an apocalyptic number.

It is an amenable number.

223674685 is a deficient number, since it is larger than the sum of its proper divisors (65381915).

223674685 is a wasteful number, since it uses less digits than its factorization.

223674685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441167.

The product of its digits is 483840, while the sum is 43.

The square root of 223674685 is about 14955.7575869630. The cubic root of 223674685 is about 607.0236495702.

The spelling of 223674685 in words is "two hundred twenty-three million, six hundred seventy-four thousand, six hundred eighty-five".

Divisors: 1 5 13 65 3441149 17205745 44734937 223674685