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5243199549 = 371913140851
BaseRepresentation
bin1001110001000010…
…01110000000111101
3111112102000010121220
410320201032000331
541214224341144
62224135543553
7243634314030
oct47041160075
914472003556
105243199549
112250716475
121023b2abb9
1365735cb53
1437a4cb017
1520a495919
hex13884e03d

5243199549 has 16 divisors (see below), whose sum is σ = 8410145280. Its totient is φ = 2838423600.

The previous prime is 5243199509. The next prime is 5243199553. The reversal of 5243199549 is 9459913425.

It is not a de Polignac number, because 5243199549 - 211 = 5243197501 is a prime.

It is a super-2 number, since 2×52431995492 = 54982283021267606802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243199509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6570027 + ... + 6570824.

It is an arithmetic number, because the mean of its divisors is an integer number (525634080).

Almost surely, 25243199549 is an apocalyptic number.

It is an amenable number.

5243199549 is a deficient number, since it is larger than the sum of its proper divisors (3166945731).

5243199549 is a wasteful number, since it uses less digits than its factorization.

5243199549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140880.

The product of its digits is 1749600, while the sum is 51.

The square root of 5243199549 is about 72409.9409542640. The cubic root of 5243199549 is about 1737.2625680702.

The spelling of 5243199549 in words is "five billion, two hundred forty-three million, one hundred ninety-nine thousand, five hundred forty-nine".

Divisors: 1 3 7 19 21 57 133 399 13140851 39422553 91985957 249676169 275957871 749028507 1747733183 5243199549