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64122152 = 238015269
BaseRepresentation
bin1111010010011…
…0110100101000
311110122202001112
43310212310220
5112403402102
610210205452
71406013023
oct364466450
9143582045
1064122152
1133216a16
1219583888
1310391303
1487321ba
155969252
hex3d26d28

64122152 has 8 divisors (see below), whose sum is σ = 120229050. Its totient is φ = 32061072.

The previous prime is 64122151. The next prime is 64122187. The reversal of 64122152 is 25122146.

It is a happy number.

64122152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 58767556 + 5354596 = 7666^2 + 2314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×641221522 = 8223300754222208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64122151) 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 as a sum of consecutive naturals, namely, 4007627 + ... + 4007642.

Almost surely, 264122152 is an apocalyptic number.

It is an amenable number.

64122152 is a deficient number, since it is larger than the sum of its proper divisors (56106898).

64122152 is a wasteful number, since it uses less digits than its factorization.

64122152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015275 (or 8015271 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 64122152 is about 8007.6308606229. The cubic root of 64122152 is about 400.2543216004.

Adding to 64122152 its reverse (25122146), we get a palindrome (89244298).

The spelling of 64122152 in words is "sixty-four million, one hundred twenty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 8015269 16030538 32061076 64122152