Search a number
-
+
228244429 = 7111729191
BaseRepresentation
bin11011001101010…
…11101111001101
3120220111000111101
431212223233031
5431412310204
634352023101
75441021440
oct1546535715
9526430441
10228244429
11107924466
1264531a91
133839619a
1422455657
1515087ea4
hexd9abbcd

228244429 has 8 divisors (see below), whose sum is σ = 261093248. Its totient is φ = 195456240.

The previous prime is 228244409. The next prime is 228244463. The reversal of 228244429 is 924442822.

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

It is not a de Polignac number, because 228244429 - 215 = 228211661 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 (228244409) 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, 6777 + ... + 22414.

It is an arithmetic number, because the mean of its divisors is an integer number (32636656).

Almost surely, 2228244429 is an apocalyptic number.

It is an amenable number.

228244429 is a deficient number, since it is larger than the sum of its proper divisors (32848819).

228244429 is a wasteful number, since it uses less digits than its factorization.

228244429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30315.

The product of its digits is 73728, while the sum is 37.

The square root of 228244429 is about 15107.7605554232. The cubic root of 228244429 is about 611.1297071060.

The spelling of 228244429 in words is "two hundred twenty-eight million, two hundred forty-four thousand, four hundred twenty-nine".

Divisors: 1 7 1117 7819 29191 204337 32606347 228244429