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22944212 = 22137149281
BaseRepresentation
bin101011110000…
…1100111010100
31121011200112122
41113201213110
521333203322
62135435112
7366010514
oct127414724
947150478
1022944212
1111a51365
127825a98
1349a4575
143093844
152033442
hex15e19d4

22944212 has 24 divisors (see below), whose sum is σ = 40861800. Its totient is φ = 11271680.

The previous prime is 22944211. The next prime is 22944221. The reversal of 22944212 is 21244922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 20830096 = 1454^2 + 4564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22944211) 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, 81512 + ... + 81792.

It is an arithmetic number, because the mean of its divisors is an integer number (1702575).

Almost surely, 222944212 is an apocalyptic number.

It is an amenable number.

22944212 is a deficient number, since it is larger than the sum of its proper divisors (17917588).

22944212 is a wasteful number, since it uses less digits than its factorization.

22944212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 22944212 is about 4790.0116910087. The cubic root of 22944212 is about 284.1565790009.

The spelling of 22944212 in words is "twenty-two million, nine hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 4 137 149 274 281 298 548 562 596 1124 20413 38497 40826 41869 76994 81652 83738 153988 167476 5736053 11472106 22944212