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10531105 = 513162017
BaseRepresentation
bin101000001011…
…000100100001
3201211000221221
4220023010201
510143443410
61013415041
7155340634
oct50130441
921730857
1010531105
115a431a2
12363a481
132249530
141581c1b
15dd04da
hexa0b121

10531105 has 8 divisors (see below), whose sum is σ = 13609512. Its totient is φ = 7776768.

The previous prime is 10531099. The next prime is 10531121. The reversal of 10531105 is 50113501.

It can be written as a sum of positive squares in 4 ways, for example, as 7569 + 10523536 = 87^2 + 3244^2 .

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 10531105 - 23 = 10531097 is a prime.

It is a super-2 number, since 2×105311052 = 221808345042050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80944 + ... + 81073.

It is an arithmetic number, because the mean of its divisors is an integer number (1701189).

Almost surely, 210531105 is an apocalyptic number.

It is an amenable number.

10531105 is a deficient number, since it is larger than the sum of its proper divisors (3078407).

10531105 is a wasteful number, since it uses less digits than its factorization.

10531105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162035.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 10531105 is about 3245.1664055946. The cubic root of 10531105 is about 219.1919738945.

Adding to 10531105 its reverse (50113501), we get a palindrome (60644606).

The spelling of 10531105 in words is "ten million, five hundred thirty-one thousand, one hundred five".

Divisors: 1 5 13 65 162017 810085 2106221 10531105