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10512137 = 17618361
BaseRepresentation
bin101000000110…
…011100001001
3201210001221102
4220012130021
510142342022
61013151145
7155231426
oct50063411
921701842
1010512137
115a2aa19
12362b4b5
1322409cc
141578d4d
15dc9a92
hexa06709

10512137 has 4 divisors (see below), whose sum is σ = 11130516. Its totient is φ = 9893760.

The previous prime is 10512121. The next prime is 10512157. The reversal of 10512137 is 73121501.

10512137 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73121501 = 241730253.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 7311616 = 1789^2 + 2704^2 .

It is a cyclic number.

It is not a de Polignac number, because 10512137 - 24 = 10512121 is a prime.

It is a super-2 number, since 2×105121372 = 221010048613538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10512157) 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, 309164 + ... + 309197.

It is an arithmetic number, because the mean of its divisors is an integer number (2782629).

Almost surely, 210512137 is an apocalyptic number.

10512137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10512137 is a deficient number, since it is larger than the sum of its proper divisors (618379).

10512137 is an equidigital number, since it uses as much as digits as its factorization.

10512137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618378.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 10512137 is about 3242.2425880862. The cubic root of 10512137 is about 219.0602962905.

Adding to 10512137 its reverse (73121501), we get a palindrome (83633638).

The spelling of 10512137 in words is "ten million, five hundred twelve thousand, one hundred thirty-seven".

Divisors: 1 17 618361 10512137