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64224070 = 256422407
BaseRepresentation
bin1111010011111…
…1101101000110
311110211220212021
43310333231012
5112420132240
610212313354
71406616121
oct364775506
9143756767
1064224070
1133286549
121961285a
13103c8811
14875b3b8
15598954a
hex3d3fb46

64224070 has 8 divisors (see below), whose sum is σ = 115603344. Its totient is φ = 25689624.

The previous prime is 64224029. The next prime is 64224071. The reversal of 64224070 is 7042246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64224071) 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, 3211194 + ... + 3211213.

It is an arithmetic number, because the mean of its divisors is an integer number (14450418).

Almost surely, 264224070 is an apocalyptic number.

64224070 is a deficient number, since it is larger than the sum of its proper divisors (51379274).

64224070 is a wasteful number, since it uses less digits than its factorization.

64224070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422414.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 64224070 is about 8013.9921387533. The cubic root of 64224070 is about 400.4662687724.

The spelling of 64224070 in words is "sixty-four million, two hundred twenty-four thousand, seventy".

Divisors: 1 2 5 10 6422407 12844814 32112035 64224070