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5439471181 = 172313911691
BaseRepresentation
bin1010001000011011…
…11011111001001101
3112001002022202200121
411010031323321031
542120001034211
62255430424541
7251536512364
oct50415737115
915032282617
105439471181
112341492231
121079802151
13688c10101
143985bc7db
1521c815271
hex14437be4d

5439471181 has 8 divisors (see below), whose sum is σ = 6009850944. Its totient is φ = 4896914880.

The previous prime is 5439471173. The next prime is 5439471223. The reversal of 5439471181 is 1811749345.

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 5439471181 - 23 = 5439471173 is a prime.

It is a super-2 number, since 2×54394711812 = 59175693457859069522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439471131) 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, 6955455 + ... + 6956236.

It is an arithmetic number, because the mean of its divisors is an integer number (751231368).

Almost surely, 25439471181 is an apocalyptic number.

It is an amenable number.

5439471181 is a deficient number, since it is larger than the sum of its proper divisors (570379763).

5439471181 is a wasteful number, since it uses less digits than its factorization.

5439471181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911731.

The product of its digits is 120960, while the sum is 43.

The square root of 5439471181 is about 73752.7706665994. The cubic root of 5439471181 is about 1758.6748786080.

The spelling of 5439471181 in words is "five billion, four hundred thirty-nine million, four hundred seventy-one thousand, one hundred eighty-one".

Divisors: 1 17 23 391 13911691 236498747 319968893 5439471181