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5254724081 = 18712808511
BaseRepresentation
bin1001110010011010…
…01011100111110001
3111120012200122022102
410321031023213301
541230202132311
62225230550145
7244134263165
oct47115134761
914505618272
105254724081
112257177a82
121027968355
136598665b9
1437bc4aca5
1520b4c043b
hex13934b9f1

5254724081 has 4 divisors (see below), whose sum is σ = 5257534464. Its totient is φ = 5251913700.

The previous prime is 5254724077. The next prime is 5254724131. The reversal of 5254724081 is 1804274525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5254724081 - 22 = 5254724077 is a prime.

It is a super-2 number, since 2×52547240812 = 55224250334882589122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5254724681) 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, 1402385 + ... + 1406126.

It is an arithmetic number, because the mean of its divisors is an integer number (1314383616).

Almost surely, 25254724081 is an apocalyptic number.

It is an amenable number.

5254724081 is a deficient number, since it is larger than the sum of its proper divisors (2810383).

5254724081 is a wasteful number, since it uses less digits than its factorization.

5254724081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810382.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 5254724081 is about 72489.4756568152. The cubic root of 5254724081 is about 1738.5344687460.

The spelling of 5254724081 in words is "five billion, two hundred fifty-four million, seven hundred twenty-four thousand, eighty-one".

Divisors: 1 1871 2808511 5254724081