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5191885 = 51723593
BaseRepresentation
bin10011110011100011001101
3100202202221001
4103303203031
52312120020
6303140301
762062456
oct23634315
910682831
105191885
112a26816
1218a4691
1310ca22a
1499212d
156c850a
hex4f38cd

5191885 has 12 divisors (see below), whose sum is σ = 6620148. Its totient is φ = 3908096.

The previous prime is 5191873. The next prime is 5191909. The reversal of 5191885 is 5881915.

It can be written as a sum of positive squares in 6 ways, for example, as 88804 + 5103081 = 298^2 + 2259^2 .

It is not a de Polignac number, because 5191885 - 25 = 5191853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (551679).

Almost surely, 25191885 is an apocalyptic number.

It is an amenable number.

5191885 is a deficient number, since it is larger than the sum of its proper divisors (1428263).

5191885 is a wasteful number, since it uses less digits than its factorization.

5191885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3615 counting only the distinct ones).

The product of its digits is 14400, while the sum is 37.

The square root of 5191885 is about 2278.5708240035. The cubic root of 5191885 is about 173.1576519628.

It can be divided in two parts, 51918 and 85, that added together give a triangular number (52003 = T322).

The spelling of 5191885 in words is "five million, one hundred ninety-one thousand, eight hundred eighty-five".

Divisors: 1 5 17 85 289 1445 3593 17965 61081 305405 1038377 5191885