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2313122212 = 227931123537
BaseRepresentation
bin1000100111011111…
…0111000110100100
312222012112210011001
42021313313012210
514214124402322
61021310123044
7111215133352
oct21167670644
95865483131
102313122212
11a87773a55
125467b0484
132ab2bab8b
1417d2c67d2
15d8114827
hex89df71a4

2313122212 has 24 divisors (see below), whose sum is σ = 4112559360. Its totient is φ = 1138200960.

The previous prime is 2313122173. The next prime is 2313122233. The reversal of 2313122212 is 2122213132.

It is a self number, because there is not a number n which added to its sum of digits gives 2313122212.

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 7 ways as a sum of consecutive naturals, for example, 86508 + ... + 110044.

It is an arithmetic number, because the mean of its divisors is an integer number (171356640).

Almost surely, 22313122212 is an apocalyptic number.

It is an amenable number.

2313122212 is a deficient number, since it is larger than the sum of its proper divisors (1799437148).

2313122212 is a wasteful number, since it uses less digits than its factorization.

2313122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23931 (or 23929 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2313122212 is about 48094.9291713794. The cubic root of 2313122212 is about 1322.5117106177.

Adding to 2313122212 its reverse (2122213132), we get a palindrome (4435335344).

The spelling of 2313122212 in words is "two billion, three hundred thirteen million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 79 158 311 316 622 1244 23537 24569 47074 49138 94148 98276 1859423 3718846 7320007 7437692 14640014 29280028 578280553 1156561106 2313122212