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4388228 = 221384389
BaseRepresentation
bin10000101111010110000100
322020221111222
4100233112010
52110410403
6234015512
752204445
oct20572604
98227458
104388228
112527a39
121577598
13ba84b0
148232cc
155ba338
hex42f584

4388228 has 12 divisors (see below), whose sum is σ = 8270220. Its totient is φ = 2025312.

The previous prime is 4388207. The next prime is 4388257. The reversal of 4388228 is 8228834.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 1592644 = 1672^2 + 1262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42143 + ... + 42246.

It is an arithmetic number, because the mean of its divisors is an integer number (689185).

Almost surely, 24388228 is an apocalyptic number.

It is an amenable number.

4388228 is a deficient number, since it is larger than the sum of its proper divisors (3881992).

4388228 is a wasteful number, since it uses less digits than its factorization.

4388228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84406 (or 84404 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 4388228 is about 2094.8097765668. The cubic root of 4388228 is about 163.7179864772.

Subtracting 4388228 from its reverse (8228834), we obtain a triangular number (3840606 = T2771).

The spelling of 4388228 in words is "four million, three hundred eighty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 13 26 52 84389 168778 337556 1097057 2194114 4388228