Search a number
-
+
28874234 = 2131191577
BaseRepresentation
bin110111000100…
…1010111111010
32000022222000002
41232021113322
524342433414
62510513002
7500266304
oct156112772
960288002
1028874234
1115331704
129805762
135c9c75c
143b98974
1528054de
hex1b895fa

28874234 has 16 divisors (see below), whose sum is σ = 43946496. Its totient is φ = 14227200.

The previous prime is 28874233. The next prime is 28874267. The reversal of 28874234 is 43247882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28874231) 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, 49754 + ... + 50330.

It is an arithmetic number, because the mean of its divisors is an integer number (2746656).

Almost surely, 228874234 is an apocalyptic number.

28874234 is a deficient number, since it is larger than the sum of its proper divisors (15072262).

28874234 is a wasteful number, since it uses less digits than its factorization.

28874234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its digits is 86016, while the sum is 38.

The square root of 28874234 is about 5373.4750394879. The cubic root of 28874234 is about 306.7869091066.

The spelling of 28874234 in words is "twenty-eight million, eight hundred seventy-four thousand, two hundred thirty-four".

Divisors: 1 2 131 191 262 382 577 1154 25021 50042 75587 110207 151174 220414 14437117 28874234