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2100202011 = 32298046751
BaseRepresentation
bin111110100101110…
…1000101000011011
312102100220022112200
41331023220220123
513300122431021
6544222341243
7103021264635
oct17513505033
95370808480
102100202011
11988566946
124a742a823
1327615baab
1415ccdda55
15c45a7126
hex7d2e8a1b

2100202011 has 12 divisors (see below), whose sum is σ = 3138233280. Its totient is φ = 1351854000.

The previous prime is 2100202007. The next prime is 2100202019. The reversal of 2100202011 is 1102020012.

It is not a de Polignac number, because 2100202011 - 22 = 2100202007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2100201984 and 2100202002.

It is not an unprimeable number, because it can be changed into a prime (2100202019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4023115 + ... + 4023636.

It is an arithmetic number, because the mean of its divisors is an integer number (261519440).

Almost surely, 22100202011 is an apocalyptic number.

2100202011 is a deficient number, since it is larger than the sum of its proper divisors (1038031269).

2100202011 is a wasteful number, since it uses less digits than its factorization.

2100202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046786 (or 8046783 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2100202011 is about 45827.9610172654. The cubic root of 2100202011 is about 1280.6202257467.

Adding to 2100202011 its reverse (1102020012), we get a palindrome (3202222023).

The spelling of 2100202011 in words is "two billion, one hundred million, two hundred two thousand, eleven".

Divisors: 1 3 9 29 87 261 8046751 24140253 72420759 233355779 700067337 2100202011