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8209085193 = 326438531663
BaseRepresentation
bin1111010010100110…
…01011001100001001
3210012002211201212100
413221103023030021
5113303011211233
63434325104013
7410300033661
oct75123131411
923162751770
108209085193
1135328a6231
121711258009
13a0a95b77a
1457c3731a1
15330a4b813
hex1e94cb309

8209085193 has 24 divisors (see below), whose sum is σ = 11897080832. Its totient is φ = 5454524448.

The previous prime is 8209085191. The next prime is 8209085201. The reversal of 8209085193 is 3915809028.

It is a happy number.

8209085193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8209085193 - 21 = 8209085191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8209085191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4935480 + ... + 4937142.

Almost surely, 28209085193 is an apocalyptic number.

It is an amenable number.

8209085193 is a deficient number, since it is larger than the sum of its proper divisors (3687995639).

8209085193 is a wasteful number, since it uses less digits than its factorization.

8209085193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 8209085193 is about 90604.0020804821. The cubic root of 8209085193 is about 2017.2741386067.

The spelling of 8209085193 in words is "eight billion, two hundred nine million, eighty-five thousand, one hundred ninety-three".

Divisors: 1 3 9 643 853 1663 1929 2559 4989 5787 7677 14967 548479 1069309 1418539 1645437 3207927 4255617 4936311 9623781 12766851 912120577 2736361731 8209085193