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8205075671 = 131361463747
BaseRepresentation
bin1111010010000111…
…11000010011010111
3210011211022000211112
413221003320103113
5113300444410141
63434103125235
7410220664262
oct75103702327
923154260745
108205075671
113530607881
12170ba4381b
13a09b86780
1457ba0bcd9
153305087eb
hex1e90f84d7

8205075671 has 8 divisors (see below), whose sum is σ = 8842746864. Its totient is φ = 7568334720.

The previous prime is 8205075667. The next prime is 8205075701. The reversal of 8205075671 is 1765705028.

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 8205075671 - 22 = 8205075667 is a prime.

It is a super-2 number, since 2×82050756712 (a number of 21 digits) 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 (8205075611) 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, 214181 + ... + 249566.

It is an arithmetic number, because the mean of its divisors is an integer number (1105343358).

Almost surely, 28205075671 is an apocalyptic number.

8205075671 is a deficient number, since it is larger than the sum of its proper divisors (637671193).

8205075671 is a wasteful number, since it uses less digits than its factorization.

8205075671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465121.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 8205075671 is about 90581.8727505675. The cubic root of 8205075671 is about 2016.9456561165.

The spelling of 8205075671 in words is "eight billion, two hundred five million, seventy-five thousand, six hundred seventy-one".

Divisors: 1 13 1361 17693 463747 6028711 631159667 8205075671