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10272531 = 33424177
BaseRepresentation
bin100111001011…
…111100010011
3201022220021010
4213023330103
510112210111
61004102003
7153213033
oct47137423
921286233
1010272531
1158869a5
123534903
132188929
1415158c3
15d7daa6
hex9cbf13

10272531 has 4 divisors (see below), whose sum is σ = 13696712. Its totient is φ = 6848352.

The previous prime is 10272529. The next prime is 10272541. The reversal of 10272531 is 13527201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10272531 - 21 = 10272529 is a prime.

It is a super-2 number, since 2×102725312 = 211049786291922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10272498 and 10272507.

It is not an unprimeable number, because it can be changed into a prime (10272511) 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, 1712086 + ... + 1712091.

It is an arithmetic number, because the mean of its divisors is an integer number (3424178).

Almost surely, 210272531 is an apocalyptic number.

10272531 is a deficient number, since it is larger than the sum of its proper divisors (3424181).

10272531 is an equidigital number, since it uses as much as digits as its factorization.

10272531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424180.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 10272531 is about 3205.0789381855. The cubic root of 10272531 is about 217.3831212439.

Adding to 10272531 its reverse (13527201), we get a palindrome (23799732).

The spelling of 10272531 in words is "ten million, two hundred seventy-two thousand, five hundred thirty-one".

Divisors: 1 3 3424177 10272531