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6538414009 = 60710771687
BaseRepresentation
bin1100001011011100…
…00100011110111001
3121212200011211211211
412011232010132321
5101342313222014
63000444523121
7321012413341
oct60556043671
917780154754
106538414009
112855845246
1213258504a1
138027b083a
14460523d21
1528403ccc4
hex185b847b9

6538414009 has 4 divisors (see below), whose sum is σ = 6549186304. Its totient is φ = 6527641716.

The previous prime is 6538413989. The next prime is 6538414021. The reversal of 6538414009 is 9004148356.

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 6538414009 - 213 = 6538405817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6538418009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385237 + ... + 5386450.

It is an arithmetic number, because the mean of its divisors is an integer number (1637296576).

Almost surely, 26538414009 is an apocalyptic number.

It is an amenable number.

6538414009 is a deficient number, since it is larger than the sum of its proper divisors (10772295).

6538414009 is a wasteful number, since it uses less digits than its factorization.

6538414009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772294.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 6538414009 is about 80860.4601087577. The cubic root of 6538414009 is about 1869.9247883617.

The spelling of 6538414009 in words is "six billion, five hundred thirty-eight million, four hundred fourteen thousand, nine".

Divisors: 1 607 10771687 6538414009