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3418991849 = 71322890103
BaseRepresentation
bin1100101111001001…
…1010110011101001
322211021102210002202
43023302122303221
524000230214344
61323132505545
7150503644160
oct31362326351
98737383082
103418991849
1114a4a281a9
127b501b2b5
13426445400
142461123d7
1515025994e
hexcbc9ace9

3418991849 has 12 divisors (see below), whose sum is σ = 4231112256. Its totient is φ = 2705135472.

The previous prime is 3418991831. The next prime is 3418991881. The reversal of 3418991849 is 9481998143.

It is not a de Polignac number, because 3418991849 - 224 = 3402214633 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3418991794 and 3418991803.

It is not an unprimeable number, because it can be changed into a prime (3418991809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1443869 + ... + 1446234.

It is an arithmetic number, because the mean of its divisors is an integer number (352592688).

Almost surely, 23418991849 is an apocalyptic number.

It is an amenable number.

3418991849 is a deficient number, since it is larger than the sum of its proper divisors (812120407).

3418991849 is a wasteful number, since it uses less digits than its factorization.

3418991849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890136 (or 2890123 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 56.

The square root of 3418991849 is about 58472.1459243630. The cubic root of 3418991849 is about 1506.4891973587.

The spelling of 3418991849 in words is "three billion, four hundred eighteen million, nine hundred ninety-one thousand, eight hundred forty-nine".

Divisors: 1 7 13 91 169 1183 2890103 20230721 37571339 262999373 488427407 3418991849