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64434814 = 2191695653
BaseRepresentation
bin1111010111001…
…1001001111110
311111020121221121
43311303021332
5112443403224
610221021154
71411454413
oct365631176
9144217847
1064434814
113340a914
12196b47ba
1310470712
1487b410a
1559cbbe4
hex3d7327e

64434814 has 8 divisors (see below), whose sum is σ = 101739240. Its totient is φ = 30521736.

The previous prime is 64434749. The next prime is 64434817. The reversal of 64434814 is 41843446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64434814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64434817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847789 + ... + 847864.

It is an arithmetic number, because the mean of its divisors is an integer number (12717405).

Almost surely, 264434814 is an apocalyptic number.

64434814 is a deficient number, since it is larger than the sum of its proper divisors (37304426).

64434814 is a wasteful number, since it uses less digits than its factorization.

64434814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695674.

The product of its digits is 36864, while the sum is 34.

The square root of 64434814 is about 8027.1298731240. The cubic root of 64434814 is about 400.9038187410.

The spelling of 64434814 in words is "sixty-four million, four hundred thirty-four thousand, eight hundred fourteen".

Divisors: 1 2 19 38 1695653 3391306 32217407 64434814