Search a number
-
+
28960130 = 252896013
BaseRepresentation
bin110111001111…
…0010110000010
32000111022211102
41232132112002
524403211010
62512414402
7501104603
oct156362602
960438742
1028960130
11153901a1
129847402
135ccc894
143bbbdaa
152820ba5
hex1b9e582

28960130 has 8 divisors (see below), whose sum is σ = 52128252. Its totient is φ = 11584048.

The previous prime is 28960117. The next prime is 28960133. The reversal of 28960130 is 3106982.

It can be written as a sum of positive squares in 2 ways, for example, as 24671089 + 4289041 = 4967^2 + 2071^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28960093 and 28960102.

It is not an unprimeable number, because it can be changed into a prime (28960133) 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, 1447997 + ... + 1448016.

Almost surely, 228960130 is an apocalyptic number.

28960130 is a deficient number, since it is larger than the sum of its proper divisors (23168122).

28960130 is a wasteful number, since it uses less digits than its factorization.

28960130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896020.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 28960130 is about 5381.4616973458. The cubic root of 28960130 is about 307.0908211313.

The spelling of 28960130 in words is "twenty-eight million, nine hundred sixty thousand, one hundred thirty".

Divisors: 1 2 5 10 2896013 5792026 14480065 28960130