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5242991 = 13478581
BaseRepresentation
bin10100000000000001101111
3100212101000212
4110000001233
52320233431
6304213035
762364455
oct24000157
910771025
105242991
112a61156
12190a17b
131117580
149a69d5
156d872b
hex50006f

5242991 has 8 divisors (see below), whose sum is σ = 5767104. Its totient is φ = 4736160.

The previous prime is 5242981. The next prime is 5243003. The reversal of 5242991 is 1992425.

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

It is not a de Polignac number, because 5242991 - 26 = 5242927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5242921) 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, 3680 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (720888).

Almost surely, 25242991 is an apocalyptic number.

5242991 is a deficient number, since it is larger than the sum of its proper divisors (524113).

5242991 is a wasteful number, since it uses less digits than its factorization.

5242991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641.

The product of its digits is 6480, while the sum is 32.

The square root of 5242991 is about 2289.7578474590. The cubic root of 5242991 is about 173.7239534477.

The spelling of 5242991 in words is "five million, two hundred forty-two thousand, nine hundred ninety-one".

Divisors: 1 13 47 611 8581 111553 403307 5242991