Search a number
-
+
28282651 = 211311431
BaseRepresentation
bin110101111100…
…0111100011011
31222012220111121
41223320330123
524220021101
62450110111
7462253465
oct153707433
958186447
1028282651
1114a681a1
12957b337
135b233c7
143a83135
15273a0a1
hex1af8f1b

28282651 has 8 divisors (see below), whose sum is σ = 28574208. Its totient is φ = 27993000.

The previous prime is 28282613. The next prime is 28282669. The reversal of 28282651 is 15628282.

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

It is a cyclic number.

It is not a de Polignac number, because 28282651 - 27 = 28282523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28282601) 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, 65406 + ... + 65836.

It is an arithmetic number, because the mean of its divisors is an integer number (3571776).

Almost surely, 228282651 is an apocalyptic number.

28282651 is a deficient number, since it is larger than the sum of its proper divisors (291557).

28282651 is a wasteful number, since it uses less digits than its factorization.

28282651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 15360, while the sum is 34.

The square root of 28282651 is about 5318.1435670730. The cubic root of 28282651 is about 304.6772578157.

The spelling of 28282651 in words is "twenty-eight million, two hundred eighty-two thousand, six hundred fifty-one".

Divisors: 1 211 311 431 65621 90941 134041 28282651