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64522129 = 7293110253
BaseRepresentation
bin1111011000100…
…0011110010001
311111102001201111
43312020132101
5113004202004
610222533321
71412300110
oct366103621
9144361644
1064522129
113346a481
1219737241
13104a1399
1487d7c77
1559e7a04
hex3d88791

64522129 has 16 divisors (see below), whose sum is σ = 78750720. Its totient is φ = 51670080.

The previous prime is 64522111. The next prime is 64522141. The reversal of 64522129 is 92122546.

64522129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64522129 - 27 = 64522001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64522129.

It is not an unprimeable number, because it can be changed into a prime (64522109) 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 15 ways as a sum of consecutive naturals, for example, 1167 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (4921920).

Almost surely, 264522129 is an apocalyptic number.

It is an amenable number.

64522129 is a deficient number, since it is larger than the sum of its proper divisors (14228591).

64522129 is a wasteful number, since it uses less digits than its factorization.

64522129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320.

The product of its digits is 8640, while the sum is 31.

The square root of 64522129 is about 8032.5667753216. The cubic root of 64522129 is about 401.0848239826.

The spelling of 64522129 in words is "sixty-four million, five hundred twenty-two thousand, one hundred twenty-nine".

Divisors: 1 7 29 31 203 217 899 6293 10253 71771 297337 317843 2081359 2224901 9217447 64522129