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4222393 = 7738263
BaseRepresentation
bin10000000110110110111001
321221112000221
4100012312321
52040104033
6230300041
750614120
oct20066671
97845027
104222393
11242438a
1214b7621
13b4ab76
147bcab7
1558612d
hex406db9

4222393 has 8 divisors (see below), whose sum is σ = 4892288. Its totient is φ = 3569184.

The previous prime is 4222391. The next prime is 4222397. The reversal of 4222393 is 3932224.

It can be divided in two parts, 42 and 22393, that multiplied together give a triangular number (940506 = T1371).

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

It is a 8-Lehmer number, since φ(4222393) divides (4222393-1)8.

It is a cyclic number.

It is not a de Polignac number, because 4222393 - 21 = 4222391 is a prime.

It is a d-powerful number, because it can be written as 411 + 2 + 27 + 213 + 3 + 92 + 39 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3621 + ... + 4642.

It is an arithmetic number, because the mean of its divisors is an integer number (611536).

Almost surely, 24222393 is an apocalyptic number.

It is an amenable number.

4222393 is a deficient number, since it is larger than the sum of its proper divisors (669895).

4222393 is an equidigital number, since it uses as much as digits as its factorization.

4222393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343.

The product of its digits is 2592, while the sum is 25.

The square root of 4222393 is about 2054.8462229568. The cubic root of 4222393 is about 161.6290986265.

The spelling of 4222393 in words is "four million, two hundred twenty-two thousand, three hundred ninety-three".

Divisors: 1 7 73 511 8263 57841 603199 4222393