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222894313 = 7915717971
BaseRepresentation
bin11010100100100…
…01100011101001
3120112102012111221
431102101203221
5424030104223
634041222041
75344366435
oct1522214351
9515365457
10222894313
111048aa884
1262791921
1337241c35
14218619c5
151487cb5d
hexd4918e9

222894313 has 8 divisors (see below), whose sum is σ = 227166080. Its totient is φ = 218658960.

The previous prime is 222894299. The next prime is 222894317. The reversal of 222894313 is 313498222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222894313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222894317) by changing a digit.

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, 3418 + ... + 21388.

It is an arithmetic number, because the mean of its divisors is an integer number (28395760).

Almost surely, 2222894313 is an apocalyptic number.

It is an amenable number.

222894313 is a deficient number, since it is larger than the sum of its proper divisors (4271767).

222894313 is a wasteful number, since it uses less digits than its factorization.

222894313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18207.

The product of its digits is 20736, while the sum is 34.

The square root of 222894313 is about 14929.6454412019. The cubic root of 222894313 is about 606.3168847027.

The spelling of 222894313 in words is "two hundred twenty-two million, eight hundred ninety-four thousand, three hundred thirteen".

Divisors: 1 79 157 12403 17971 1419709 2821447 222894313