Search a number
-
+
5210442 = 232289469
BaseRepresentation
bin10011111000000101001010
3100210201101100
4103320011022
52313213232
6303402230
762200536
oct23700512
910721340
105210442
112a39756
1218b3376
131105803
14998bc6
156cdc7c
hex4f814a

5210442 has 12 divisors (see below), whose sum is σ = 11289330. Its totient is φ = 1736808.

The previous prime is 5210423. The next prime is 5210473. The reversal of 5210442 is 2440125.

It can be written as a sum of positive squares in only one way, i.e., 2653641 + 2556801 = 1629^2 + 1599^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 289469 = 5210442 / (5 + 2 + 1 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144717 + ... + 144752.

Almost surely, 25210442 is an apocalyptic number.

5210442 is an abundant number, since it is smaller than the sum of its proper divisors (6078888).

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

5210442 is a wasteful number, since it uses less digits than its factorization.

5210442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289477 (or 289474 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5210442 is about 2282.6392619071. The cubic root of 5210442 is about 173.3637085163.

Adding to 5210442 its reverse (2440125), we get a palindrome (7650567).

The spelling of 5210442 in words is "five million, two hundred ten thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 289469 578938 868407 1736814 2605221 5210442