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64996 = 2216249
BaseRepresentation
bin1111110111100100
310022011021
433313210
54034441
61220524
7360331
oct176744
9108137
1064996
1144918
1231744
1323779
1419988
15143d1
hexfde4

64996 has 6 divisors (see below), whose sum is σ = 113750. Its totient is φ = 32496.

The previous prime is 64969. The next prime is 64997. The reversal of 64996 is 69946.

It can be written as a sum of positive squares in only one way, i.e., 57600 + 7396 = 240^2 + 86^2 .

It is a fibodiv number, since the Fibonacci-like sequence with seeds 6 and 4996 contains 64996 itself.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (64997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121 + ... + 8128.

264996 is an apocalyptic number.

It is an amenable number.

64996 is a deficient number, since it is larger than the sum of its proper divisors (48754).

64996 is a wasteful number, since it uses less digits than its factorization.

64996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16253 (or 16251 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 64996 is about 254.9431309135. The cubic root of 64996 is about 40.2064328047.

Subtracting 64996 from its reverse (69946), we obtain a triangular number (4950 = T99).

The spelling of 64996 in words is "sixty-four thousand, nine hundred ninety-six".

Divisors: 1 2 4 16249 32498 64996