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64664341 = 710191463
BaseRepresentation
bin1111011010101…
…1001100010101
311111200021210121
43312223030111
5113023224331
610225551541
71413431530
oct366531425
9144607717
1064664341
1133557305
12197a55b1
1310521031
148833a17
155a24c11
hex3dab315

64664341 has 8 divisors (see below), whose sum is σ = 74634624. Its totient is φ = 54877200.

The previous prime is 64664321. The next prime is 64664381. The reversal of 64664341 is 14346646.

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

It is not a de Polignac number, because 64664341 - 25 = 64664309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64664297 and 64664306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64664321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45025 + ... + 46438.

It is an arithmetic number, because the mean of its divisors is an integer number (9329328).

Almost surely, 264664341 is an apocalyptic number.

It is an amenable number.

64664341 is a deficient number, since it is larger than the sum of its proper divisors (9970283).

64664341 is a wasteful number, since it uses less digits than its factorization.

64664341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91571.

The product of its digits is 41472, while the sum is 34.

The square root of 64664341 is about 8041.4141169324. The cubic root of 64664341 is about 401.3792822347.

The spelling of 64664341 in words is "sixty-four million, six hundred sixty-four thousand, three hundred forty-one".

Divisors: 1 7 101 707 91463 640241 9237763 64664341