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5287931 = 11647743
BaseRepresentation
bin10100001010111111111011
3100221122200022
4110022333323
52323203211
6305201055
762642465
oct24127773
910848608
105287931
112a919a0
12193018b
131131b6c
149b9135
156e6bdb
hex50affb

5287931 has 8 divisors (see below), whose sum is σ = 5785344. Its totient is φ = 4793320.

The previous prime is 5287921. The next prime is 5287937. The reversal of 5287931 is 1397825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5287931 is a prime.

It is a super-2 number, since 2×52879312 = 55924428521522, 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 = 5287891 and 5287900.

It is not an unprimeable number, because it can be changed into a prime (5287937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6746 + ... + 7488.

It is an arithmetic number, because the mean of its divisors is an integer number (723168).

Almost surely, 25287931 is an apocalyptic number.

5287931 is a deficient number, since it is larger than the sum of its proper divisors (497413).

5287931 is a wasteful number, since it uses less digits than its factorization.

5287931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its digits is 15120, while the sum is 35.

The square root of 5287931 is about 2299.5501734035. The cubic root of 5287931 is about 174.2188970077.

The spelling of 5287931 in words is "five million, two hundred eighty-seven thousand, nine hundred thirty-one".

Divisors: 1 11 647 743 7117 8173 480721 5287931