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2002102211 = 7687260453
BaseRepresentation
bin111011101010101…
…1010011111000011
312011112022022220202
41313111122133003
513100014232321
6530355555415
7100420405454
oct16725323703
95145268822
102002102211
1193815302a
1247a5bbb6b
1325ba32185
1414dc8512b
15bab7a70b
hex7755a7c3

2002102211 has 4 divisors (see below), whose sum is σ = 2002370352. Its totient is φ = 2001834072.

The previous prime is 2002102199. The next prime is 2002102237. The reversal of 2002102211 is 1122012002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002102211 - 26 = 2002102147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002102192 and 2002102201.

It is not an unprimeable number, because it can be changed into a prime (2002102111) 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 3 ways as a sum of consecutive naturals, for example, 122540 + ... + 137913.

It is an arithmetic number, because the mean of its divisors is an integer number (500592588).

Almost surely, 22002102211 is an apocalyptic number.

2002102211 is a deficient number, since it is larger than the sum of its proper divisors (268141).

2002102211 is an equidigital number, since it uses as much as digits as its factorization.

2002102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268140.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2002102211 is about 44744.8568105877. The cubic root of 2002102211 is about 1260.3623319680.

Adding to 2002102211 its reverse (1122012002), we get a palindrome (3124114213).

The spelling of 2002102211 in words is "two billion, two million, one hundred two thousand, two hundred eleven".

Divisors: 1 7687 260453 2002102211