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64668801 = 323937229
BaseRepresentation
bin1111011010110…
…0010010000001
311111200111220210
43312230102001
5113023400201
610230024333
71413450531
oct366542201
9144614823
1064668801
113355a69a
12197a80a9
1310523082
1488354c1
155a261d6
hex3dac481

64668801 has 8 divisors (see below), whose sum is σ = 89974080. Its totient is φ = 41238032.

The previous prime is 64668763. The next prime is 64668803. The reversal of 64668801 is 10886646.

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

It is a cyclic number.

It is not a de Polignac number, because 64668801 - 210 = 64667777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64668801.

It is not an unprimeable number, because it can be changed into a prime (64668803) 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, 468546 + ... + 468683.

It is an arithmetic number, because the mean of its divisors is an integer number (11246760).

Almost surely, 264668801 is an apocalyptic number.

It is an amenable number.

64668801 is a deficient number, since it is larger than the sum of its proper divisors (25305279).

64668801 is a wasteful number, since it uses less digits than its factorization.

64668801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937255.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 64668801 is about 8041.6914265595. The cubic root of 64668801 is about 401.3885099400.

The spelling of 64668801 in words is "sixty-four million, six hundred sixty-eight thousand, eight hundred one".

Divisors: 1 3 23 69 937229 2811687 21556267 64668801