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64105652 = 22131232801
BaseRepresentation
bin1111010010001…
…0110010110100
311110121220102102
43310202302310
5112402340102
610210001232
71405613642
oct364426264
9143556372
1064105652
1133205586
1219576218
1310386950
14872a192
155964402
hex3d22cb4

64105652 has 12 divisors (see below), whose sum is σ = 120814596. Its totient is φ = 29587200.

The previous prime is 64105637. The next prime is 64105681. The reversal of 64105652 is 25650146.

64105652 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 2 ways, for example, as 35952016 + 28153636 = 5996^2 + 5306^2 .

It is a super-3 number, since 3×641056523 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 616349 + ... + 616452.

It is an arithmetic number, because the mean of its divisors is an integer number (10067883).

Almost surely, 264105652 is an apocalyptic number.

It is an amenable number.

64105652 is a deficient number, since it is larger than the sum of its proper divisors (56708944).

64105652 is a wasteful number, since it uses less digits than its factorization.

64105652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232818 (or 1232816 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 64105652 is about 8006.6005270652. The cubic root of 64105652 is about 400.2199873251.

Adding to 64105652 its reverse (25650146), we get a palindrome (89755798).

The spelling of 64105652 in words is "sixty-four million, one hundred five thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 52 1232801 2465602 4931204 16026413 32052826 64105652