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5193985 = 51038797
BaseRepresentation
bin10011110100000100000001
3100202212210211
4103310010001
52312201420
6303154121
762101546
oct23640401
910685724
105193985
112a28355
1218a5941
1310cb184
14992bcd
156c8e5a
hex4f4101

5193985 has 4 divisors (see below), whose sum is σ = 6232788. Its totient is φ = 4155184.

The previous prime is 5193983. The next prime is 5193989. The reversal of 5193985 is 5893915.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 3297856 = 1377^2 + 1816^2 .

It is a cyclic number.

It is not a de Polignac number, because 5193985 - 21 = 5193983 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5193983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519394 + ... + 519403.

It is an arithmetic number, because the mean of its divisors is an integer number (1558197).

Almost surely, 25193985 is an apocalyptic number.

It is an amenable number.

5193985 is a deficient number, since it is larger than the sum of its proper divisors (1038803).

5193985 is a wasteful number, since it uses less digits than its factorization.

5193985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038802.

The product of its digits is 48600, while the sum is 40.

The square root of 5193985 is about 2279.0315925849. The cubic root of 5193985 is about 173.1809949332.

The spelling of 5193985 in words is "five million, one hundred ninety-three thousand, nine hundred eighty-five".

Divisors: 1 5 1038797 5193985