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210282149 = 7112248267
BaseRepresentation
bin11001000100010…
…10011010100101
3112122200102212202
430202022122211
5412313012044
632511024245
75132240330
oct1442123245
9478612782
10210282149
11a8776100
125a50b085
133474740c
141dcdb617
15136dac4e
hexc88a6a5

210282149 has 12 divisors (see below), whose sum is σ = 264157152. Its totient is φ = 163855560.

The previous prime is 210282143. The next prime is 210282157. The reversal of 210282149 is 941282012.

It is a de Polignac number, because none of the positive numbers 2k-210282149 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210282143) 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, 123287 + ... + 124980.

It is an arithmetic number, because the mean of its divisors is an integer number (22013096).

Almost surely, 2210282149 is an apocalyptic number.

It is an amenable number.

210282149 is a deficient number, since it is larger than the sum of its proper divisors (53875003).

210282149 is a wasteful number, since it uses less digits than its factorization.

210282149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248296 (or 248285 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 210282149 is about 14501.1085438321. The cubic root of 210282149 is about 594.6582779921.

The spelling of 210282149 in words is "two hundred ten million, two hundred eighty-two thousand, one hundred forty-nine".

Divisors: 1 7 11 77 121 847 248267 1737869 2730937 19116559 30040307 210282149