Search a number
-
+
4284820 = 225316911
BaseRepresentation
bin10000010110000110010100
322001200200001
4100112012110
52044103240
6231501044
751264121
oct20260624
98050601
104284820
112467281
121527784
13b703c7
147d7748
1559989a
hex416194

4284820 has 24 divisors (see below), whose sum is σ = 9289728. Its totient is φ = 1658400.

The previous prime is 4284817. The next prime is 4284827. The reversal of 4284820 is 284824.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4284827) 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, 2836 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (387072).

Almost surely, 24284820 is an apocalyptic number.

It is an amenable number.

4284820 is an abundant number, since it is smaller than the sum of its proper divisors (5004908).

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

4284820 is a wasteful number, since it uses less digits than its factorization.

4284820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951 (or 6949 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 4284820 is about 2069.9806762383. The cubic root of 4284820 is about 162.4217532558.

The spelling of 4284820 in words is "four million, two hundred eighty-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 6911 13822 27644 34555 69110 138220 214241 428482 856964 1071205 2142410 4284820