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5217989 = 71939233
BaseRepresentation
bin10011111001111011000101
3100211002201212
4103321323011
52313433424
6303501205
762231540
oct23717305
910732655
105217989
112a44397
1218b7805
13110908a
1499b857
156d110e
hex4f9ec5

5217989 has 8 divisors (see below), whose sum is σ = 6277440. Its totient is φ = 4237056.

The previous prime is 5217943. The next prime is 5217991. The reversal of 5217989 is 9897125.

5217989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5217989 - 28 = 5217733 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 (5217689) 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, 19484 + ... + 19749.

It is an arithmetic number, because the mean of its divisors is an integer number (784680).

Almost surely, 25217989 is an apocalyptic number.

It is an amenable number.

5217989 is a deficient number, since it is larger than the sum of its proper divisors (1059451).

5217989 is a wasteful number, since it uses less digits than its factorization.

5217989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39259.

The product of its digits is 45360, while the sum is 41.

The square root of 5217989 is about 2284.2917939703. The cubic root of 5217989 is about 173.4473703064.

The spelling of 5217989 in words is "five million, two hundred seventeen thousand, nine hundred eighty-nine".

Divisors: 1 7 19 133 39233 274631 745427 5217989