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64965982 = 2163719843
BaseRepresentation
bin1111011111010…
…0110101011110
311112020121120111
43313310311132
5113112402412
610240240234
71416126124
oct367646536
9145217514
1064965982
11337429a4
121991007a
13105c8413
1488b1914
155a842a7
hex3df4d5e

64965982 has 8 divisors (see below), whose sum is σ = 97513416. Its totient is φ = 32461512.

The previous prime is 64965977. The next prime is 64966019. The reversal of 64965982 is 28956946.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6648 + ... + 13195.

It is an arithmetic number, because the mean of its divisors is an integer number (12189177).

Almost surely, 264965982 is an apocalyptic number.

64965982 is a deficient number, since it is larger than the sum of its proper divisors (32547434).

64965982 is a wasteful number, since it uses less digits than its factorization.

64965982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21482.

The product of its digits is 933120, while the sum is 49.

The square root of 64965982 is about 8060.1477653949. The cubic root of 64965982 is about 402.0024215426.

The spelling of 64965982 in words is "sixty-four million, nine hundred sixty-five thousand, nine hundred eighty-two".

Divisors: 1 2 1637 3274 19843 39686 32482991 64965982