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23010066 = 2321278337
BaseRepresentation
bin101011111000…
…1101100010010
31121022000212200
41113301230102
521342310231
62141104030
7366403512
oct127615422
947260780
1023010066
1111a96892
127858016
1349c8531
1430ad842
152047be6
hex15f1b12

23010066 has 12 divisors (see below), whose sum is σ = 49855182. Its totient is φ = 7670016.

The previous prime is 23010047. The next prime is 23010067. The reversal of 23010066 is 66001032.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17464041 + 5546025 = 4179^2 + 2355^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1278337 = 23010066 / (2 + 3 + 0 + 1 + 0 + 0 + 6 + 6).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23010067) 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 5 ways as a sum of consecutive naturals, for example, 639151 + ... + 639186.

Almost surely, 223010066 is an apocalyptic number.

23010066 is an abundant number, since it is smaller than the sum of its proper divisors (26845116).

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

23010066 is a wasteful number, since it uses less digits than its factorization.

23010066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278345 (or 1278342 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 23010066 is about 4796.8808615599. The cubic root of 23010066 is about 284.4281794198.

Adding to 23010066 its reverse (66001032), we get a palindrome (89011098).

It can be divided in two parts, 230 and 10066, that added together give a triangular number (10296 = T143).

The spelling of 23010066 in words is "twenty-three million, ten thousand, sixty-six".

Divisors: 1 2 3 6 9 18 1278337 2556674 3835011 7670022 11505033 23010066