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20324227 = 711263951
BaseRepresentation
bin100110110000…
…1111110000011
31102020120121011
41031201332003
520200333402
62003341351
7334516210
oct115417603
942216534
1020324227
1110521990
126981857
134297b91
1429b0b07
151bb6ed7
hex1361f83

20324227 has 8 divisors (see below), whose sum is σ = 25339392. Its totient is φ = 15837000.

The previous prime is 20324221. The next prime is 20324237. The reversal of 20324227 is 72242302.

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-20324227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20324198 and 20324207.

It is not an unprimeable number, because it can be changed into a prime (20324221) 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, 131899 + ... + 132052.

It is an arithmetic number, because the mean of its divisors is an integer number (3167424).

Almost surely, 220324227 is an apocalyptic number.

20324227 is a deficient number, since it is larger than the sum of its proper divisors (5015165).

20324227 is a wasteful number, since it uses less digits than its factorization.

20324227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263969.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20324227 is about 4508.2399004490. The cubic root of 20324227 is about 272.9007184149.

Adding to 20324227 its reverse (72242302), we get a palindrome (92566529).

The spelling of 20324227 in words is "twenty million, three hundred twenty-four thousand, two hundred twenty-seven".

Divisors: 1 7 11 77 263951 1847657 2903461 20324227