Search a number
-
+
4284025 = 521929311
BaseRepresentation
bin10000010101111001111001
322001122120121
4100111321321
52044042100
6231453241
751261604
oct20257171
98048517
104284025
112466719
121527221
13b6cc35
147d733b
1559951a
hex415e79

4284025 has 24 divisors (see below), whose sum is σ = 5803200. Its totient is φ = 3124800.

The previous prime is 4284023. The next prime is 4284037. The reversal of 4284025 is 5204824.

It is a happy number.

It is not a de Polignac number, because 4284025 - 21 = 4284023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (4284023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13620 + ... + 13930.

It is an arithmetic number, because the mean of its divisors is an integer number (241800).

Almost surely, 24284025 is an apocalyptic number.

It is an amenable number.

4284025 is a deficient number, since it is larger than the sum of its proper divisors (1519175).

4284025 is a wasteful number, since it uses less digits than its factorization.

4284025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4284025 is about 2069.7886365521. The cubic root of 4284025 is about 162.4117074600.

Adding to 4284025 its reverse (5204824), we get a palindrome (9488849).

The spelling of 4284025 in words is "four million, two hundred eighty-four thousand, twenty-five".

Divisors: 1 5 19 25 29 95 145 311 475 551 725 1555 2755 5909 7775 9019 13775 29545 45095 147725 171361 225475 856805 4284025