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2111302212 = 223175941851
BaseRepresentation
bin111110111010111…
…1110101001000100
312110010210021011020
41331311332221010
513310443132322
6545300311140
7103214526015
oct17565765104
95403707136
102111302212
11993858668
124ab0a24b0
13278547366
1416058d00c
15c554b05c
hex7dd7ea44

2111302212 has 12 divisors (see below), whose sum is σ = 4926371856. Its totient is φ = 703767400.

The previous prime is 2111302201. The next prime is 2111302307. The reversal of 2111302212 is 2122031112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2111302191 and 2111302200.

It is an unprimeable number.

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, 87970914 + ... + 87970937.

It is an arithmetic number, because the mean of its divisors is an integer number (410530988).

Almost surely, 22111302212 is an apocalyptic number.

It is an amenable number.

2111302212 is an abundant number, since it is smaller than the sum of its proper divisors (2815069644).

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

2111302212 is a wasteful number, since it uses less digits than its factorization.

2111302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175941858 (or 175941856 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2111302212 is about 45948.9087139183. The cubic root of 2111302212 is about 1282.8724172570.

Adding to 2111302212 its reverse (2122031112), we get a palindrome (4233333324).

The spelling of 2111302212 in words is "two billion, one hundred eleven million, three hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 175941851 351883702 527825553 703767404 1055651106 2111302212