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4931287 = 47239439
BaseRepresentation
bin10010110011111011010111
3100021112110021
4102303323113
52230300122
6253410011
756625634
oct22637327
910245407
104931287
112868a49
121799907
13103872a
1492518b
156761c7
hex4b3ed7

4931287 has 8 divisors (see below), whose sum is σ = 5068800. Its totient is φ = 4795224.

The previous prime is 4931261. The next prime is 4931299. The reversal of 4931287 is 7821394.

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

It is a cyclic number.

It is not a de Polignac number, because 4931287 - 27 = 4931159 is a prime.

It is a Duffinian number.

4931287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4931237) 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, 11014 + ... + 11452.

It is an arithmetic number, because the mean of its divisors is an integer number (633600).

Almost surely, 24931287 is an apocalyptic number.

4931287 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

4931287 is a deficient number, since it is larger than the sum of its proper divisors (137513).

4931287 is a wasteful number, since it uses less digits than its factorization.

4931287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 12096, while the sum is 34.

The square root of 4931287 is about 2220.6501300295. The cubic root of 4931287 is about 170.2106615654.

The spelling of 4931287 in words is "four million, nine hundred thirty-one thousand, two hundred eighty-seven".

Divisors: 1 47 239 439 11233 20633 104921 4931287