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10544312531 = 40212622311
BaseRepresentation
bin10011101000111110…
…10111000011010011
31000012211222120112202
421310133113003103
5133043321000111
64502145113415
7522204114644
oct116437270323
930184876482
1010544312531
114520a98085
12206332886b
13cc06b8cac
147205716cb
1541aa7ab3b
hex2747d70d3

10544312531 has 4 divisors (see below), whose sum is σ = 10546938864. Its totient is φ = 10541686200.

The previous prime is 10544312521. The next prime is 10544312609. The reversal of 10544312531 is 13521344501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13521344501 = 71931620643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10544312531 is a prime.

It is a super-2 number, since 2×105443125312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10544312494 and 10544312503.

It is not an unprimeable number, because it can be changed into a prime (10544312521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307135 + ... + 1315176.

It is an arithmetic number, because the mean of its divisors is an integer number (2636734716).

Almost surely, 210544312531 is an apocalyptic number.

10544312531 is a deficient number, since it is larger than the sum of its proper divisors (2626333).

10544312531 is an equidigital number, since it uses as much as digits as its factorization.

10544312531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626332.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 10544312531 in words is "ten billion, five hundred forty-four million, three hundred twelve thousand, five hundred thirty-one".

Divisors: 1 4021 2622311 10544312531