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5287121 = 75314251
BaseRepresentation
bin10100001010110011010001
3100221121120022
4110022303101
52323141441
6305153225
762640230
oct24126321
910847508
105287121
112a91324
12192b815
131131698
149b8b17
156e684b
hex50acd1

5287121 has 8 divisors (see below), whose sum is σ = 6156864. Its totient is φ = 4446000.

The previous prime is 5287097. The next prime is 5287141. The reversal of 5287121 is 1217825.

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 5287121 - 214 = 5270737 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5287141) 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, 6755 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (769608).

Almost surely, 25287121 is an apocalyptic number.

It is an amenable number.

5287121 is a deficient number, since it is larger than the sum of its proper divisors (869743).

5287121 is a wasteful number, since it uses less digits than its factorization.

5287121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14311.

The product of its digits is 1120, while the sum is 26.

The square root of 5287121 is about 2299.3740452567. The cubic root of 5287121 is about 174.2100009944.

The spelling of 5287121 in words is "five million, two hundred eighty-seven thousand, one hundred twenty-one".

Divisors: 1 7 53 371 14251 99757 755303 5287121