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10531456 = 27136329
BaseRepresentation
bin101000001011…
…001010000000
3201211001102221
4220023022000
510144001311
61013420424
7155341645
oct50131200
921731387
1010531456
115a43491
12363a714
132249740
141581dcc
15dd0671
hexa0b280

10531456 has 32 divisors (see below), whose sum is σ = 22598100. Its totient is φ = 4859904.

The previous prime is 10531429. The next prime is 10531457. The reversal of 10531456 is 65413501.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 33856 = 3240^2 + 184^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×105314562 = 221823130959872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10531456.

It is not an unprimeable number, because it can be changed into a prime (10531457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501 + ... + 4828.

Almost surely, 210531456 is an apocalyptic number.

10531456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10531456 is an abundant number, since it is smaller than the sum of its proper divisors (12066644).

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

10531456 is an equidigital number, since it uses as much as digits as its factorization.

10531456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 10531456 is about 3245.2204855757. The cubic root of 10531456 is about 219.1944090783.

Adding to 10531456 its reverse (65413501), we get a palindrome (75944957).

The spelling of 10531456 in words is "ten million, five hundred thirty-one thousand, four hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 832 1664 6329 12658 25316 50632 82277 101264 164554 202528 329108 405056 658216 810112 1316432 2632864 5265728 10531456