Search a number
-
+
64080197 = 556311519
BaseRepresentation
bin1111010001110…
…0100101000101
311110120121111122
43310130211011
5112401031242
610205243325
71405446506
oct364344505
9143517448
1064080197
1133198445
1219563545
131037819c
148720bad
15595bad2
hex3d1c945

64080197 has 4 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 64063116.

The previous prime is 64080187. The next prime is 64080199. The reversal of 64080197 is 79108046.

64080197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64080197 is a prime.

It is a super-3 number, since 3×640801973 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64080199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 11322.

It is an arithmetic number, because the mean of its divisors is an integer number (16024320).

Almost surely, 264080197 is an apocalyptic number.

It is an amenable number.

64080197 is a deficient number, since it is larger than the sum of its proper divisors (17083).

64080197 is a wasteful number, since it uses less digits than its factorization.

64080197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17082.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 64080197 is about 8005.0107432782. The cubic root of 64080197 is about 400.1670073450.

The spelling of 64080197 in words is "sixty-four million, eighty thousand, one hundred ninety-seven".

Divisors: 1 5563 11519 64080197