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5260981 = 11478271
BaseRepresentation
bin10100000100011010110101
3100220021201011
4110010122311
52321322411
6304432221
762501065
oct24043265
910807634
105260981
112a73720
121918671
13112280b
149ad3a5
156ddc21
hex5046b5

5260981 has 4 divisors (see below), whose sum is σ = 5739264. Its totient is φ = 4782700.

The previous prime is 5260949. The next prime is 5260999. The reversal of 5260981 is 1890625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5260981 - 25 = 5260949 is a prime.

It is a super-2 number, since 2×52609812 = 55355842164722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5260901) 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, 239125 + ... + 239146.

It is an arithmetic number, because the mean of its divisors is an integer number (1434816).

Almost surely, 25260981 is an apocalyptic number.

It is an amenable number.

5260981 is a deficient number, since it is larger than the sum of its proper divisors (478283).

5260981 is a wasteful number, since it uses less digits than its factorization.

5260981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478282.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5260981 is about 2293.6828464284. The cubic root of 5260981 is about 173.9224232504.

It can be divided in two parts, 5260 and 981, that added together give a square (6241 = 792).

The spelling of 5260981 in words is "five million, two hundred sixty thousand, nine hundred eighty-one".

Divisors: 1 11 478271 5260981