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73164287 = 797277389
BaseRepresentation
bin1000101110001…
…10010111111111
312002200010112102
410113012113333
5122212224122
611132055315
71545612650
oct427062777
9162603472
1073164287
1138332459
122060453b
1312208ba1
149a07527
156653492
hex45c65ff

73164287 has 16 divisors (see below), whose sum is σ = 85001280. Its totient is φ = 61682688.

The previous prime is 73164271. The next prime is 73164317. The reversal of 73164287 is 78246137.

It is not a de Polignac number, because 73164287 - 24 = 73164271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73164287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73164227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187889 + ... + 188277.

It is an arithmetic number, because the mean of its divisors is an integer number (5312580).

Almost surely, 273164287 is an apocalyptic number.

73164287 is a deficient number, since it is larger than the sum of its proper divisors (11836993).

73164287 is a wasteful number, since it uses less digits than its factorization.

73164287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its digits is 56448, while the sum is 38.

The square root of 73164287 is about 8553.6125116818. The cubic root of 73164287 is about 418.2472057876.

The spelling of 73164287 in words is "seventy-three million, one hundred sixty-four thousand, two hundred eighty-seven".

Divisors: 1 7 97 277 389 679 1939 2723 26869 37733 107753 188083 264131 754271 10452041 73164287