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2102102011 = 38314873691
BaseRepresentation
bin111110101001011…
…1000011111111011
312102111110211212001
41331102320133323
513301114231021
6544331201431
7103043400202
oct17522703773
95374424761
102102102011
11989644399
124a7ba6277
13276675859
1415d276239
15c4830091
hex7d4b87fb

2102102011 has 8 divisors (see below), whose sum is σ = 2109579264. Its totient is φ = 2094635880.

The previous prime is 2102101961. The next prime is 2102102017. The reversal of 2102102011 is 1102012012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2102102011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102102017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567676 + ... + 571366.

It is an arithmetic number, because the mean of its divisors is an integer number (263697408).

Almost surely, 22102102011 is an apocalyptic number.

2102102011 is a deficient number, since it is larger than the sum of its proper divisors (7477253).

2102102011 is a wasteful number, since it uses less digits than its factorization.

2102102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2102102011 is about 45848.6860335168. The cubic root of 2102102011 is about 1281.0062909982.

Adding to 2102102011 its reverse (1102012012), we get a palindrome (3204114023).

The spelling of 2102102011 in words is "two billion, one hundred two million, one hundred two thousand, eleven".

Divisors: 1 383 1487 3691 569521 1413653 5488517 2102102011