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5120917 = 37313729
BaseRepresentation
bin10011100010001110010101
3100122011120121
4103202032111
52302332132
6301431541
761345534
oct23421625
910564517
105120917
11298846a
12186b5b1
1310a3b39
1497431b
156b2497
hex4e2395

5120917 has 4 divisors (see below), whose sum is σ = 5135020. Its totient is φ = 5106816.

The previous prime is 5120891. The next prime is 5120939. The reversal of 5120917 is 7190215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2328676 + 2792241 = 1526^2 + 1671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5120917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5120891 and 5120900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (1283755).

Almost surely, 25120917 is an apocalyptic number.

It is an amenable number.

5120917 is a deficient number, since it is larger than the sum of its proper divisors (14103).

5120917 is a wasteful number, since it uses less digits than its factorization.

5120917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14102.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 5120917 is about 2262.9443210119. The cubic root of 5120917 is about 172.3650642582.

The spelling of 5120917 in words is "five million, one hundred twenty thousand, nine hundred seventeen".

Divisors: 1 373 13729 5120917