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10531081 = 112693559
BaseRepresentation
bin101000001011…
…000100001001
3201211000221001
4220023010021
510143443311
61013415001
7155340601
oct50130411
921730831
1010531081
115a43180
12363a461
132249512
141581c01
15dd04c1
hexa0b109

10531081 has 8 divisors (see below), whose sum is σ = 11534400. Its totient is φ = 9535440.

The previous prime is 10531069. The next prime is 10531091. The reversal of 10531081 is 18013501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10531081 - 219 = 10006793 is a prime.

It is a super-2 number, since 2×105310812 = 221807334057122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10531061) 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, 1180 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (1441800).

Almost surely, 210531081 is an apocalyptic number.

10531081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10531081 is a deficient number, since it is larger than the sum of its proper divisors (1003319).

10531081 is a wasteful number, since it uses less digits than its factorization.

10531081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 10531081 is about 3245.1627077852. The cubic root of 10531081 is about 219.1918073842.

Adding to 10531081 its reverse (18013501), we get a palindrome (28544582).

The spelling of 10531081 in words is "ten million, five hundred thirty-one thousand, eighty-one".

Divisors: 1 11 269 2959 3559 39149 957371 10531081