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2105141211 = 33312515103
BaseRepresentation
bin111110101111001…
…1110011111011011
312102201012020212000
41331132132133123
513302404004321
6544520252043
7103111255635
oct17536363733
95381166760
102105141211
1199032a828
124a9011023
1327719acb4
1415d827a55
15c4c30826
hex7d79e7db

2105141211 has 16 divisors (see below), whose sum is σ = 3219333120. Its totient is φ = 1358155080.

The previous prime is 2105141189. The next prime is 2105141221. The reversal of 2105141211 is 1121415012.

It is not a de Polignac number, because 2105141211 - 25 = 2105141179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105141221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256715 + ... + 1258388.

It is an arithmetic number, because the mean of its divisors is an integer number (201208320).

Almost surely, 22105141211 is an apocalyptic number.

2105141211 is a deficient number, since it is larger than the sum of its proper divisors (1114191909).

2105141211 is a wasteful number, since it uses less digits than its factorization.

2105141211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515143 (or 2515137 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 2105141211 is about 45881.8178693914. The cubic root of 2105141211 is about 1281.6233494690.

Adding to 2105141211 its reverse (1121415012), we get a palindrome (3226556223).

The spelling of 2105141211 in words is "two billion, one hundred five million, one hundred forty-one thousand, two hundred eleven".

Divisors: 1 3 9 27 31 93 279 837 2515103 7545309 22635927 67907781 77968193 233904579 701713737 2105141211