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2105110212 = 2231487117973
BaseRepresentation
bin111110101111001…
…0110111011000100
312102201010200022220
41331132112323010
513302402011322
6544515452340
7103111066362
oct17536267304
95381120286
102105110212
11990309507
124a8bb70b0
13277189b5a
1415d81a632
15c4c2655c
hex7d796ec4

2105110212 has 24 divisors (see below), whose sum is σ = 4915268736. Its totient is φ = 701225568.

The previous prime is 2105110207. The next prime is 2105110219. The reversal of 2105110212 is 2120115012.

It is a junction number, because it is equal to n+sod(n) for n = 2105110191 and 2105110200.

It is not an unprimeable number, because it can be changed into a prime (2105110219) 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 7 ways as a sum of consecutive naturals, for example, 41143 + ... + 76830.

It is an arithmetic number, because the mean of its divisors is an integer number (204802864).

Almost surely, 22105110212 is an apocalyptic number.

It is an amenable number.

2105110212 is an abundant number, since it is smaller than the sum of its proper divisors (2810158524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105110212 is a wasteful number, since it uses less digits than its factorization.

2105110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119467 (or 119465 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2105110212 is about 45881.4800545928. The cubic root of 2105110212 is about 1281.6170586421.

Adding to 2105110212 its reverse (2120115012), we get a palindrome (4225225224).

The spelling of 2105110212 in words is "two billion, one hundred five million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1487 2974 4461 5948 8922 17844 117973 235946 353919 471892 707838 1415676 175425851 350851702 526277553 701703404 1052555106 2105110212