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6530418019 = 13399487381
BaseRepresentation
bin1100001010011111…
…00100010101100011
3121212010010121102001
412011033210111203
5101333241334034
63000001304431
7320554431406
oct60517442543
917763117361
106530418019
112851283794
121323035117
13800c41198
1445d441d3d
152834ada14
hex1853e4563

6530418019 has 4 divisors (see below), whose sum is σ = 6530918800. Its totient is φ = 6529917240.

The previous prime is 6530418017. The next prime is 6530418067. The reversal of 6530418019 is 9108140356.

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

It is a cyclic number.

It is not a de Polignac number, because 6530418019 - 21 = 6530418017 is a prime.

It is a super-2 number, since 2×65304180192 = 85292719005759768722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6530418017) 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, 230292 + ... + 257089.

It is an arithmetic number, because the mean of its divisors is an integer number (1632729700).

Almost surely, 26530418019 is an apocalyptic number.

6530418019 is a deficient number, since it is larger than the sum of its proper divisors (500781).

6530418019 is a wasteful number, since it uses less digits than its factorization.

6530418019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500780.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 6530418019 is about 80811.0018438084. The cubic root of 6530418019 is about 1869.1622181599.

The spelling of 6530418019 in words is "six billion, five hundred thirty million, four hundred eighteen thousand, nineteen".

Divisors: 1 13399 487381 6530418019