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2182055849 = 109142914009
BaseRepresentation
bin1000001000001111…
…1000011110101001
312122001220220220022
42002003320132221
513432101241344
61000305010225
7105034111601
oct20203703651
95561826808
102182055849
11a1a793946
1250a923975
1328a0bac0c
14169b29c01
15cb8750ee
hex820f87a9

2182055849 has 8 divisors (see below), whose sum is σ = 2203773000. Its totient is φ = 2160369792.

The previous prime is 2182055833. The next prime is 2182055857. The reversal of 2182055849 is 9485502812.

It can be written as a sum of positive squares in 4 ways, for example, as 309936025 + 1872119824 = 17605^2 + 43268^2 .

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 2182055849 - 24 = 2182055833 is a prime.

It is a super-2 number, since 2×21820558492 = 9522735456310221602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2182051849) 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, 148757 + ... + 162765.

It is an arithmetic number, because the mean of its divisors is an integer number (275471625).

Almost surely, 22182055849 is an apocalyptic number.

It is an amenable number.

2182055849 is a deficient number, since it is larger than the sum of its proper divisors (21717151).

2182055849 is a wasteful number, since it uses less digits than its factorization.

2182055849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15547.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 2182055849 is about 46712.4806556021. The cubic root of 2182055849 is about 1297.0457271488.

The spelling of 2182055849 in words is "two billion, one hundred eighty-two million, fifty-five thousand, eight hundred forty-nine".

Divisors: 1 109 1429 14009 155761 1526981 20018861 2182055849