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852520 = 23521313
BaseRepresentation
bin11010000001000101000
31121022102211
43100020220
5204240040
630134504
710150324
oct3201050
91538384
10852520
11532569
12351434
1323b066
14182984
1511c8ea
hexd0228

852520 has 16 divisors (see below), whose sum is σ = 1918260. Its totient is φ = 340992.

The previous prime is 852463. The next prime is 852521. The reversal of 852520 is 25258.

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 31684 = 906^2 + 178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 852491 and 852500.

It is not an unprimeable number, because it can be changed into a prime (852521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10617 + ... + 10696.

2852520 is an apocalyptic number.

It is an amenable number.

852520 is an abundant number, since it is smaller than the sum of its proper divisors (1065740).

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

852520 is a wasteful number, since it uses less digits than its factorization.

852520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324 (or 21320 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 852520 is about 923.3200961747. The cubic root of 852520 is about 94.8203437501.

Adding to 852520 its reverse (25258), we get a palindrome (877778).

The spelling of 852520 in words is "eight hundred fifty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 21313 42626 85252 106565 170504 213130 426260 852520