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2111212106 = 22351449003
BaseRepresentation
bin111110111010110…
…1000101001001010
312110010121200112222
41331311220221022
513310432241411
6545254334042
7103214002223
oct17565505112
95403550488
102111212106
119937a69a3
124ab05a322
13278515343
1416056824a
15c552e4db
hex7dd68a4a

2111212106 has 8 divisors (see below), whose sum is σ = 3168172224. Its totient is φ = 1055154700.

The previous prime is 2111212097. The next prime is 2111212157. The reversal of 2111212106 is 6012121112.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 219800 + ... + 229203.

It is an arithmetic number, because the mean of its divisors is an integer number (396021528).

Almost surely, 22111212106 is an apocalyptic number.

2111212106 is a deficient number, since it is larger than the sum of its proper divisors (1056960118).

2111212106 is a wasteful number, since it uses less digits than its factorization.

2111212106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451356.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 2111212106 is about 45947.9282013890. The cubic root of 2111212106 is about 1282.8541668859.

Adding to 2111212106 its reverse (6012121112), we get a palindrome (8123333218).

The spelling of 2111212106 in words is "two billion, one hundred eleven million, two hundred twelve thousand, one hundred six".

Divisors: 1 2 2351 4702 449003 898006 1055606053 2111212106