Search a number
-
+
4428832 = 25138401
BaseRepresentation
bin10000111001010000100000
322100000012211
4100321100200
52113210312
6234531504
752434022
oct20712040
98300184
104428832
1125554a1
121596b94
13bc0b15
14834012
155c73a7
hex439420

4428832 has 12 divisors (see below), whose sum is σ = 8719326. Its totient is φ = 2214400.

The previous prime is 4428829. The next prime is 4428833. The reversal of 4428832 is 2388244.

It can be written as a sum of positive squares in only one way, i.e., 3857296 + 571536 = 1964^2 + 756^2 .

It is a super-2 number, since 2×44288322 = 39229105768448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4428794 and 4428803.

It is not an unprimeable number, because it can be changed into a prime (4428833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69169 + ... + 69232.

Almost surely, 24428832 is an apocalyptic number.

It is an amenable number.

4428832 is a deficient number, since it is larger than the sum of its proper divisors (4290494).

4428832 is a wasteful number, since it uses less digits than its factorization.

4428832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138411 (or 138403 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 4428832 is about 2104.4790329200. The cubic root of 4428832 is about 164.2213944270.

The spelling of 4428832 in words is "four million, four hundred twenty-eight thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 32 138401 276802 553604 1107208 2214416 4428832