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2140147 = 17312131
BaseRepresentation
bin1000001010011111110011
311000201201201
420022133303
51021441042
6113512031
724122332
oct10123763
94021651
102140147
111231a19
12872617
1359c179
143d9d19
152c41b7
hex20a7f3

2140147 has 12 divisors (see below), whose sum is σ = 2359368. Its totient is φ = 1934400.

The previous prime is 2140139. The next prime is 2140157. The reversal of 2140147 is 7410412.

It is not a de Polignac number, because 2140147 - 23 = 2140139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140157) 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, 16272 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (196614).

22140147 is an apocalyptic number.

2140147 is a deficient number, since it is larger than the sum of its proper divisors (219221).

2140147 is a wasteful number, since it uses less digits than its factorization.

2140147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2140147 is about 1462.9241265356. The cubic root of 2140147 is about 128.8688248539.

Adding to 2140147 its reverse (7410412), we get a palindrome (9550559).

The spelling of 2140147 in words is "two million, one hundred forty thousand, one hundred forty-seven".

Divisors: 1 17 31 131 527 961 2227 4061 16337 69037 125891 2140147