Search a number
-
+
252620 = 22517743
BaseRepresentation
bin111101101011001100
3110211112022
4331223030
531040440
65225312
72101334
oct755314
9424468
10252620
11162885
12102238
138aca4
14680c4
154ecb5
hex3dacc

252620 has 24 divisors (see below), whose sum is σ = 562464. Its totient is φ = 94976.

The previous prime is 252617. The next prime is 252641. The reversal of 252620 is 26252.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (23436).

2252620 is an apocalyptic number.

252620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281232).

252620 is an abundant number, since it is smaller than the sum of its proper divisors (309844).

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

252620 is a wasteful number, since it uses less digits than its factorization.

252620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 252620 is about 502.6131713356. The cubic root of 252620 is about 63.2153543850.

Adding to 252620 its reverse (26252), we get a palindrome (278872).

The spelling of 252620 in words is "two hundred fifty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 743 1486 2972 3715 7430 12631 14860 25262 50524 63155 126310 252620