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2121300441 = 33137185121
BaseRepresentation
bin111111001110000…
…0111100111011001
312110211121020011000
41332130013213121
513321023103231
6550254455213
7103365520251
oct17634074731
95424536130
102121300441
11999467467
124b2504509
1327a638180
14161a32961
15c63736e6
hex7e7079d9

2121300441 has 32 divisors (see below), whose sum is σ = 3432119040. Its totient is φ = 1287014400.

The previous prime is 2121300427. The next prime is 2121300451. The reversal of 2121300441 is 1440031212.

2121300441 is a `hidden beast` number, since 212 + 13 + 0 + 0 + 441 = 666.

It is not a de Polignac number, because 2121300441 - 210 = 2121299417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121300421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17640 + ... + 67481.

It is an arithmetic number, because the mean of its divisors is an integer number (107253720).

Almost surely, 22121300441 is an apocalyptic number.

It is an amenable number.

2121300441 is a deficient number, since it is larger than the sum of its proper divisors (1310818599).

2121300441 is a wasteful number, since it uses less digits than its factorization.

2121300441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85214 (or 85208 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2121300441 is about 46057.5774547468. The cubic root of 2121300441 is about 1284.8942750404.

Adding to 2121300441 its reverse (1440031212), we get a palindrome (3561331653).

The spelling of 2121300441 in words is "two billion, one hundred twenty-one million, three hundred thousand, four hundred forty-one".

Divisors: 1 3 9 13 27 39 71 117 213 351 639 923 1917 2769 8307 24921 85121 255363 766089 1106573 2298267 3319719 6043591 9959157 18130773 29877471 54392319 78566683 163176957 235700049 707100147 2121300441