Search a number
-
+
28843124 = 227210781
BaseRepresentation
bin110111000000…
…1110001110100
32000021101022212
41232001301310
524340434444
62510112552
7500106512
oct156016164
960241285
1028843124
11153102a2
1297ab758
135c8b54b
143b8b4b2
1527eb19e
hex1b81c74

28843124 has 6 divisors (see below), whose sum is σ = 50475474. Its totient is φ = 14421560.

The previous prime is 28843117. The next prime is 28843151. The reversal of 28843124 is 42134882.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 2010724 = 5180^2 + 1418^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605387 + ... + 3605394.

It is an arithmetic number, because the mean of its divisors is an integer number (8412579).

Almost surely, 228843124 is an apocalyptic number.

It is an amenable number.

28843124 is a deficient number, since it is larger than the sum of its proper divisors (21632350).

28843124 is a wasteful number, since it uses less digits than its factorization.

28843124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210785 (or 7210783 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 28843124 is about 5370.5794845622. The cubic root of 28843124 is about 306.6766889184.

The spelling of 28843124 in words is "twenty-eight million, eight hundred forty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 7210781 14421562 28843124