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64529049 = 3134393769
BaseRepresentation
bin1111011000101…
…0001010011001
311111102102012210
43312022022121
5113004412144
610223025333
71412326224
oct366121231
9144372183
1064529049
11334746a2
121973b249
13104a4590
1487da5bb
1559e9ab9
hex3d8a299

64529049 has 16 divisors (see below), whose sum is σ = 92892800. Its totient is φ = 39609216.

The previous prime is 64529029. The next prime is 64529051. The reversal of 64529049 is 94092546.

64529049 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 64529049 - 213 = 64520857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 64528998 and 64529016.

It is not an unprimeable number, because it can be changed into a prime (64529029) 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, 15237 + ... + 19005.

It is an arithmetic number, because the mean of its divisors is an integer number (5805800).

Almost surely, 264529049 is an apocalyptic number.

It is an amenable number.

64529049 is a deficient number, since it is larger than the sum of its proper divisors (28363751).

64529049 is a wasteful number, since it uses less digits than its factorization.

64529049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 64529049 is about 8032.9975102697. The cubic root of 64529049 is about 401.0991622559.

The spelling of 64529049 in words is "sixty-four million, five hundred twenty-nine thousand, forty-nine".

Divisors: 1 3 13 39 439 1317 3769 5707 11307 17121 48997 146991 1654591 4963773 21509683 64529049