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11232520 = 2351321601
BaseRepresentation
bin101010110110…
…010100001000
3210010200010021
4222312110020
510333420040
61040430224
7164321605
oct52662410
923120107
1011232520
116382182
123918374
132433880
1416c56ac
15ebd24a
hexab6508

11232520 has 32 divisors (see below), whose sum is σ = 27218520. Its totient is φ = 4147200.

The previous prime is 11232517. The next prime is 11232521. The reversal of 11232520 is 2523211.

It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 1954404 = 3046^2 + 1398^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11232494 and 11232503.

It is not an unprimeable number, because it can be changed into a prime (11232521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10281 + ... + 11320.

Almost surely, 211232520 is an apocalyptic number.

11232520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232520 is an abundant number, since it is smaller than the sum of its proper divisors (15986000).

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

11232520 is a wasteful number, since it uses less digits than its factorization.

11232520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21625 (or 21621 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 11232520 is about 3351.4951887180. The cubic root of 11232520 is about 223.9541253846.

Adding to 11232520 its reverse (2523211), we get a palindrome (13755731).

The spelling of 11232520 in words is "eleven million, two hundred thirty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 21601 43202 86404 108005 172808 216010 280813 432020 561626 864040 1123252 1404065 2246504 2808130 5616260 11232520