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2112245205 = 357210327901
BaseRepresentation
bin111110111100110…
…0100110111010101
312110012120011200220
41331321210313111
513311213321310
6545332424553
7103225534200
oct17571446725
95405504626
102112245205
119943420a4
124ab478159
132787b7645
14160756937
15c5685670
hex7de64dd5

2112245205 has 48 divisors (see below), whose sum is σ = 3969673344. Its totient is φ = 956188800.

The previous prime is 2112245173. The next prime is 2112245293. The reversal of 2112245205 is 5025422112.

It is not a de Polignac number, because 2112245205 - 25 = 2112245173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61755 + ... + 89655.

It is an arithmetic number, because the mean of its divisors is an integer number (82701528).

Almost surely, 22112245205 is an apocalyptic number.

It is an amenable number.

2112245205 is a deficient number, since it is larger than the sum of its proper divisors (1857428139).

2112245205 is a wasteful number, since it uses less digits than its factorization.

2112245205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28026 (or 28019 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2112245205 is about 45959.1688893522. The cubic root of 2112245205 is about 1283.0633830728.

Adding to 2112245205 its reverse (5025422112), we get a palindrome (7137667317).

The spelling of 2112245205 in words is "two billion, one hundred twelve million, two hundred forty-five thousand, two hundred five".

Divisors: 1 3 5 7 15 21 35 49 103 105 147 245 309 515 721 735 1545 2163 3605 5047 10815 15141 25235 27901 75705 83703 139505 195307 418515 585921 976535 1367149 2873803 2929605 4101447 6835745 8621409 14369015 20116621 20507235 43107045 60349863 100583105 140816347 301749315 422449041 704081735 2112245205