Search a number
-
+
728025223 = 19110334739
BaseRepresentation
bin101011011001001…
…100100010000111
31212201220111212011
4223121030202013
52442333301343
6200124035051
724020053342
oct5331144207
91781814764
10728025223
11343a51142
12183992a87
13b7aa2573
146c991459
1543dab29d
hex2b64c887

728025223 has 8 divisors (see below), whose sum is σ = 767059200. Its totient is φ = 689062968.

The previous prime is 728025169. The next prime is 728025227. The reversal of 728025223 is 322520827.

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

It is a de Polignac number, because none of the positive numbers 2k-728025223 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 (728025227) 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, 3588 + ... + 38326.

It is an arithmetic number, because the mean of its divisors is an integer number (95882400).

Almost surely, 2728025223 is an apocalyptic number.

728025223 is a deficient number, since it is larger than the sum of its proper divisors (39033977).

728025223 is a wasteful number, since it uses less digits than its factorization.

728025223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35861.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 728025223 is about 26981.9425357034. The cubic root of 728025223 is about 899.5986782737.

The spelling of 728025223 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred twenty-three".

Divisors: 1 19 1103 20957 34739 660041 38317117 728025223