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5185015849 = 131920991967
BaseRepresentation
bin1001101010000110…
…10001000000101001
3111101100112002121001
410311003101000221
541104331001344
62214300515001
7242326623166
oct46503210051
914340462531
105185015849
112220896172
12100854ba61
1364829a820
143728a306d
15205300ed4
hex1350d1029

5185015849 has 8 divisors (see below), whose sum is σ = 5877751040. Its totient is φ = 4534264656.

The previous prime is 5185015817. The next prime is 5185015873. The reversal of 5185015849 is 9485105815.

It is a happy number.

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 5185015849 - 25 = 5185015817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5185015799 and 5185015808.

It is not an unprimeable number, because it can be changed into a prime (5185025849) 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, 10495737 + ... + 10496230.

It is an arithmetic number, because the mean of its divisors is an integer number (734718880).

Almost surely, 25185015849 is an apocalyptic number.

It is an amenable number.

5185015849 is a deficient number, since it is larger than the sum of its proper divisors (692735191).

5185015849 is a wasteful number, since it uses less digits than its factorization.

5185015849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20991999.

The product of its (nonzero) digits is 288000, while the sum is 46.

The square root of 5185015849 is about 72007.0541613806. The cubic root of 5185015849 is about 1730.8125254255.

The spelling of 5185015849 in words is "five billion, one hundred eighty-five million, fifteen thousand, eight hundred forty-nine".

Divisors: 1 13 19 247 20991967 272895571 398847373 5185015849