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242022213 = 32139193463
BaseRepresentation
bin11100110110011…
…11011101000101
3121212102000001200
432123033131011
5443424202323
640003213113
75666104056
oct1633173505
9555360050
10242022213
11114684964
1269077199
133b1ab414
142420072d
15163aa443
hexe6cf745

242022213 has 12 divisors (see below), whose sum is σ = 352104480. Its totient is φ = 160186536.

The previous prime is 242022211. The next prime is 242022227. The reversal of 242022213 is 312220242.

It is not a de Polignac number, because 242022213 - 21 = 242022211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95481 + ... + 97982.

It is an arithmetic number, because the mean of its divisors is an integer number (29342040).

Almost surely, 2242022213 is an apocalyptic number.

It is an amenable number.

242022213 is a deficient number, since it is larger than the sum of its proper divisors (110082267).

242022213 is a wasteful number, since it uses less digits than its factorization.

242022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193608 (or 193605 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 242022213 is about 15557.0631225820. The cubic root of 242022213 is about 623.1870345617.

Adding to 242022213 its reverse (312220242), we get a palindrome (554242455).

The spelling of 242022213 in words is "two hundred forty-two million, twenty-two thousand, two hundred thirteen".

Divisors: 1 3 9 139 417 1251 193463 580389 1741167 26891357 80674071 242022213