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2140229 = 71329811
BaseRepresentation
bin1000001010100001000101
311000201211202
420022201011
51021441404
6113512245
724122510
oct10124105
94021752
102140229
111231a93
12872685
1359c210
143d9d77
152c421e
hex20a845

2140229 has 16 divisors (see below), whose sum is σ = 2728320. Its totient is φ = 1632960.

The previous prime is 2140223. The next prime is 2140231. The reversal of 2140229 is 9220412.

It is not a de Polignac number, because 2140229 - 212 = 2136133 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (170520).

22140229 is an apocalyptic number.

2140229 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2140229 is a deficient number, since it is larger than the sum of its proper divisors (588091).

2140229 is a wasteful number, since it uses less digits than its factorization.

2140229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2140229 is about 1462.9521523276. The cubic root of 2140229 is about 128.8704707079.

The spelling of 2140229 in words is "two million, one hundred forty thousand, two hundred twenty-nine".

Divisors: 1 7 13 29 91 203 377 811 2639 5677 10543 23519 73801 164633 305747 2140229