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64012833 = 3240117737
BaseRepresentation
bin1111010000110…
…0001000100001
311110110012002200
43310030020201
5112341402313
610204003413
71405046223
oct364141041
9143405080
1064012833
1133151875
1219530569
1310353621
148704413
155946b73
hex3d0c221

64012833 has 12 divisors (see below), whose sum is σ = 92698788. Its totient is φ = 42566400.

The previous prime is 64012829. The next prime is 64012847. The reversal of 64012833 is 33821046.

It is a happy number.

64012833 is a `hidden beast` number, since 640 + 12 + 8 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60652944 + 3359889 = 7788^2 + 1833^2 .

It is not a de Polignac number, because 64012833 - 22 = 64012829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64012797 and 64012806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5260 + ... + 12477.

It is an arithmetic number, because the mean of its divisors is an integer number (7724899).

Almost surely, 264012833 is an apocalyptic number.

It is an amenable number.

64012833 is a deficient number, since it is larger than the sum of its proper divisors (28685955).

64012833 is a wasteful number, since it uses less digits than its factorization.

64012833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18144 (or 18141 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64012833 is about 8000.8020222975. The cubic root of 64012833 is about 400.0267336299.

Adding to 64012833 its reverse (33821046), we get a palindrome (97833879).

The spelling of 64012833 in words is "sixty-four million, twelve thousand, eight hundred thirty-three".

Divisors: 1 3 9 401 1203 3609 17737 53211 159633 7112537 21337611 64012833