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3980779 = 112167197
BaseRepresentation
bin1111001011110111101011
321111020121021
433023313223
52004341104
6221153311
745556525
oct17136753
97436537
103980779
112279900
1213bb837
13a94bba
14758a15
15539754
hex3cbdeb

3980779 has 12 divisors (see below), whose sum is σ = 4424112. Its totient is φ = 3578960.

The previous prime is 3980761. The next prime is 3980819. The reversal of 3980779 is 9770893.

It is not a de Polignac number, because 3980779 - 217 = 3849707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3980729) 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, 20109 + ... + 20305.

It is an arithmetic number, because the mean of its divisors is an integer number (368676).

Almost surely, 23980779 is an apocalyptic number.

3980779 is a deficient number, since it is larger than the sum of its proper divisors (443333).

3980779 is a wasteful number, since it uses less digits than its factorization.

3980779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 3980779 is about 1995.1889634819. The cubic root of 3980779 is about 158.4854348785.

The spelling of 3980779 in words is "three million, nine hundred eighty thousand, seven hundred seventy-nine".

Divisors: 1 11 121 167 197 1837 2167 20207 23837 32899 361889 3980779