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1212112010 = 25791639413
BaseRepresentation
bin100100000111111…
…0101110010001010
310010110210200002102
41020033311302022
54440300041020
6320135433402
742015532154
oct11017656212
93113720072
101212112010
1157222976a
12299b25862
13164175455
14b6da3ad4
157162e475
hex483f5c8a

1212112010 has 32 divisors (see below), whose sum is σ = 2223210240. Its totient is φ = 475720128.

The previous prime is 1212111977. The next prime is 1212112037. The reversal of 1212112010 is 102112121.

It is a junction number, because it is equal to n+sod(n) for n = 1212111982 and 1212112000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124064 + ... + 133476.

It is an arithmetic number, because the mean of its divisors is an integer number (69475320).

Almost surely, 21212112010 is an apocalyptic number.

1212112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212112010 is a deficient number, since it is larger than the sum of its proper divisors (1011098230).

1212112010 is a wasteful number, since it uses less digits than its factorization.

1212112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1212112010 is about 34815.3990354843. The cubic root of 1212112010 is about 1066.2218660845.

Adding to 1212112010 its reverse (102112121), we get a palindrome (1314224131).

The spelling of 1212112010 in words is "one billion, two hundred twelve million, one hundred twelve thousand, ten".

Divisors: 1 2 5 10 79 158 163 326 395 790 815 1630 9413 12877 18826 25754 47065 64385 94130 128770 743627 1487254 1534319 3068638 3718135 7436270 7671595 15343190 121211201 242422402 606056005 1212112010