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22706964 = 2232790107
BaseRepresentation
bin101011010011…
…1101100010100
31120201122002200
41112213230110
521303110324
62130404500
7364002030
oct126475424
946648080
1022706964
11118aa095
127730730
134920597
1430311c0
151ed7ec9
hex15a7b14

22706964 has 36 divisors (see below), whose sum is σ = 65598624. Its totient is φ = 6487632.

The previous prime is 22706963. The next prime is 22706977. The reversal of 22706964 is 46960722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22706963) 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 11 ways as a sum of consecutive naturals, for example, 44802 + ... + 45305.

It is an arithmetic number, because the mean of its divisors is an integer number (1822184).

Almost surely, 222706964 is an apocalyptic number.

It is an amenable number.

22706964 is an abundant number, since it is smaller than the sum of its proper divisors (42891660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22706964 is a wasteful number, since it uses less digits than its factorization.

22706964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90124 (or 90119 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 22706964 is about 4765.1824728965. The cubic root of 22706964 is about 283.1737706724.

The spelling of 22706964 in words is "twenty-two million, seven hundred six thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 90107 180214 270321 360428 540642 630749 810963 1081284 1261498 1621926 1892247 2522996 3243852 3784494 5676741 7568988 11353482 22706964