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9008181819009 = 331719625668451
BaseRepresentation
bin1000001100010110000101…
…1110100011011010000001
31011220011200200100022001000
42003011201132203122001
52140042224021202014
631054145051202213
71616551100041062
oct203054136433201
934804620308030
109008181819009
11296339188091a
121015a19a46369
13504610c92909
14231dd959c569
151094cbb3e509
hex831617a3681

9008181819009 has 16 divisors (see below), whose sum is σ = 14130481285440. Its totient is φ = 5652192513600.

The previous prime is 9008181818981. The next prime is 9008181819061. The reversal of 9008181819009 is 9009181818009.

It is not a de Polignac number, because 9008181819009 - 223 = 9008173430401 is a prime.

It is a super-2 number, since 2×90081818190092 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9008189819009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9812833767 + ... + 9812834684.

It is an arithmetic number, because the mean of its divisors is an integer number (883155080340).

Almost surely, 29008181819009 is an apocalyptic number.

It is an amenable number.

9008181819009 is a deficient number, since it is larger than the sum of its proper divisors (5122299466431).

9008181819009 is a wasteful number, since it uses less digits than its factorization.

9008181819009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19625668477 (or 19625668471 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 54.

The spelling of 9008181819009 in words is "nine trillion, eight billion, one hundred eighty-one million, eight hundred nineteen thousand, nine".

Divisors: 1 3 9 17 27 51 153 459 19625668451 58877005353 176631016059 333636363667 529893048177 1000909091001 3002727273003 9008181819009