Search a number
-
+
624130 = 25134801
BaseRepresentation
bin10011000011000000010
31011201010221
42120120002
5124433010
621213254
75206423
oct2303002
91151127
10624130
11396a11
1226122a
1318b110
1412364a
15c4dda
hex98602

624130 has 16 divisors (see below), whose sum is σ = 1210104. Its totient is φ = 230400.

The previous prime is 624119. The next prime is 624133. The reversal of 624130 is 31426.

It can be written as a sum of positive squares in 4 ways, for example, as 413449 + 210681 = 643^2 + 459^2 .

It is not an unprimeable number, because it can be changed into a prime (624133) by changing a digit.

624130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2271 + ... + 2530.

2624130 is an apocalyptic number.

624130 is a deficient number, since it is larger than the sum of its proper divisors (585974).

624130 is a wasteful number, since it uses less digits than its factorization.

624130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 624130 is about 790.0189871136. The cubic root of 624130 is about 85.4591074701.

Adding to 624130 its reverse (31426), we get a palindrome (655556).

Subtracting from 624130 its reverse (31426), we obtain a cube (592704 = 843).

The spelling of 624130 in words is "six hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 4801 9602 24005 48010 62413 124826 312065 624130