Search a number
-
+
28080597 = 324138839
BaseRepresentation
bin110101100011…
…1100111010101
31221211122100010
41223013213111
524142034342
62441510433
7460452426
oct153074725
957748303
1028080597
111493a406
1294a2419
135a8244c
143a2d64d
1526ea29c
hex1ac79d5

28080597 has 8 divisors (see below), whose sum is σ = 37597120. Its totient is φ = 18642240.

The previous prime is 28080593. The next prime is 28080599. The reversal of 28080597 is 79508082.

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

It is not a de Polignac number, because 28080597 - 22 = 28080593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080593) 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, 18697 + ... + 20142.

It is an arithmetic number, because the mean of its divisors is an integer number (4699640).

Almost surely, 228080597 is an apocalyptic number.

It is an amenable number.

28080597 is a deficient number, since it is larger than the sum of its proper divisors (9516523).

28080597 is a wasteful number, since it uses less digits than its factorization.

28080597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39083.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 28080597 is about 5299.1128502798. The cubic root of 28080597 is about 303.9499751770.

The spelling of 28080597 in words is "twenty-eight million, eighty thousand, five hundred ninety-seven".

Divisors: 1 3 241 723 38839 116517 9360199 28080597