Search a number
-
+
4428008 = 231342577
BaseRepresentation
bin10000111001000011101000
322022222002022
4100321003220
52113144013
6234524012
752431434
oct20710350
98288068
104428008
112554912
121596608
13bc0630
148339c4
155c7008
hex4390e8

4428008 has 16 divisors (see below), whose sum is σ = 8941380. Its totient is φ = 2043648.

The previous prime is 4428001. The next prime is 4428013. The reversal of 4428008 is 8008244.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 9604 = 2102^2 + 98^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (4428001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21185 + ... + 21392.

Almost surely, 24428008 is an apocalyptic number.

It is an amenable number.

4428008 is an abundant number, since it is smaller than the sum of its proper divisors (4513372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4428008 is a wasteful number, since it uses less digits than its factorization.

4428008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42596 (or 42592 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 4428008 is about 2104.2832508957. The cubic root of 4428008 is about 164.2112091365.

The spelling of 4428008 in words is "four million, four hundred twenty-eight thousand, eight".

Divisors: 1 2 4 8 13 26 52 104 42577 85154 170308 340616 553501 1107002 2214004 4428008