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2205132231 = 31814061017
BaseRepresentation
bin1000001101101111…
…1010010111000111
312200200100022202010
42003123322113013
514004003212411
61002451345303
7105434212641
oct20333722707
95620308663
102205132231
11a31815535
125165b2233
13291b0a693
1416cc15891
15cd8d27a6
hex836fa5c7

2205132231 has 8 divisors (see below), whose sum is σ = 2956421104. Its totient is φ = 1461965760.

The previous prime is 2205132173. The next prime is 2205132277. The reversal of 2205132231 is 1322315022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2205132231 - 27 = 2205132103 is a prime.

It is a super-2 number, since 2×22051322312 = 9725216312390074722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205132198 and 2205132207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205131231) 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, 2029966 + ... + 2031051.

It is an arithmetic number, because the mean of its divisors is an integer number (369552638).

Almost surely, 22205132231 is an apocalyptic number.

2205132231 is a deficient number, since it is larger than the sum of its proper divisors (751288873).

2205132231 is a wasteful number, since it uses less digits than its factorization.

2205132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061201.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2205132231 is about 46958.8354945052. The cubic root of 2205132231 is about 1301.6020153297.

Adding to 2205132231 its reverse (1322315022), we get a palindrome (3527447253).

The spelling of 2205132231 in words is "two billion, two hundred five million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 181 543 4061017 12183051 735044077 2205132231