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2112203210 = 251319855143
BaseRepresentation
bin111110111100101…
…1010100111001010
312110012111001002112
41331321122213022
513311211000320
6545331502322
7103225300565
oct17571324712
95405431075
102112203210
11994313597
124ab4579a2
132787a14b0
141607454dc
15c5677ec5
hex7de5a9ca

2112203210 has 32 divisors (see below), whose sum is σ = 4309925760. Its totient is φ = 738842688.

The previous prime is 2112203209. The next prime is 2112203213. The reversal of 2112203210 is 123022112.

It is a happy number.

It is a super-2 number, since 2×21122032102 = 8922804800668608200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112203213) 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 15 ways as a sum of consecutive naturals, for example, 425102 + ... + 430041.

It is an arithmetic number, because the mean of its divisors is an integer number (134685180).

Almost surely, 22112203210 is an apocalyptic number.

2112203210 is an abundant number, since it is smaller than the sum of its proper divisors (2197722550).

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

2112203210 is a wasteful number, since it uses less digits than its factorization.

2112203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855182.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2112203210 is about 45958.7120141546. The cubic root of 2112203210 is about 1283.0548798612.

Adding to 2112203210 its reverse (123022112), we get a palindrome (2235225322).

The spelling of 2112203210 in words is "two billion, one hundred twelve million, two hundred three thousand, two hundred ten".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 494 1235 2470 855143 1710286 4275715 8551430 11116859 16247717 22233718 32495434 55584295 81238585 111168590 162477170 211220321 422440642 1056101605 2112203210