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22141217 = 74197549
BaseRepresentation
bin101010001110…
…1100100100001
31112122220001002
41110131210201
521132004332
62110321345
7356124440
oct124354441
945586032
1022141217
111155302a
1274b9255
134782c17
142d24d57
151e25562
hex151d921

22141217 has 8 divisors (see below), whose sum is σ = 25368000. Its totient is φ = 18930384.

The previous prime is 22141211. The next prime is 22141241. The reversal of 22141217 is 71214122.

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 22141217 - 24 = 22141201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22141211) 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, 842 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (3171000).

Almost surely, 222141217 is an apocalyptic number.

It is an amenable number.

22141217 is a deficient number, since it is larger than the sum of its proper divisors (3226783).

22141217 is an equidigital number, since it uses as much as digits as its factorization.

22141217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975.

The product of its digits is 224, while the sum is 20.

The square root of 22141217 is about 4705.4454624403. The cubic root of 22141217 is about 280.8021935865.

Adding to 22141217 its reverse (71214122), we get a palindrome (93355339).

The spelling of 22141217 in words is "twenty-two million, one hundred forty-one thousand, two hundred seventeen".

Divisors: 1 7 419 2933 7549 52843 3163031 22141217