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6172081689 = 34743773629
BaseRepresentation
bin1011011111110001…
…00111111000011001
3120221010212020101010
411233320213320121
5100120023103224
62500241044133
7305643554154
oct55770477031
916833766333
106172081689
112687a85364
121243026649
13774929757
14427a04c9b
15261cc9e29
hex16fe27e19

6172081689 has 8 divisors (see below), whose sum is σ = 8404536960. Its totient is φ = 4027173776.

The previous prime is 6172081681. The next prime is 6172081711. The reversal of 6172081689 is 9861802716.

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 6172081689 - 23 = 6172081681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6172081681) 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, 21886674 + ... + 21886955.

It is an arithmetic number, because the mean of its divisors is an integer number (1050567120).

Almost surely, 26172081689 is an apocalyptic number.

It is an amenable number.

6172081689 is a deficient number, since it is larger than the sum of its proper divisors (2232455271).

6172081689 is a wasteful number, since it uses less digits than its factorization.

6172081689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43773679.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 6172081689 is about 78562.5972648563. The cubic root of 6172081689 is about 1834.3289563764.

The spelling of 6172081689 in words is "six billion, one hundred seventy-two million, eighty-one thousand, six hundred eighty-nine".

Divisors: 1 3 47 141 43773629 131320887 2057360563 6172081689