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1212310010 = 251947135757
BaseRepresentation
bin100100001000010…
…0110000111111010
310010111011201200202
41020100212013322
54440322410020
6320144002202
742020315342
oct11020460772
93114151622
101212310010
115723544aa
1229a000362
13164214602
14b7015d22
157166ce75
hex484261fa

1212310010 has 32 divisors (see below), whose sum is σ = 2345898240. Its totient is φ = 449623872.

The previous prime is 1212309979. The next prime is 1212310027. The reversal of 1212310010 is 100132121.

It is a junction number, because it is equal to n+sod(n) for n = 1212309973 and 1212310000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58949 + ... + 76808.

It is an arithmetic number, because the mean of its divisors is an integer number (73309320).

Almost surely, 21212310010 is an apocalyptic number.

1212310010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212310010 is a deficient number, since it is larger than the sum of its proper divisors (1133588230).

1212310010 is a wasteful number, since it uses less digits than its factorization.

1212310010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135830.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1212310010 is about 34818.2424886725. The cubic root of 1212310010 is about 1066.2799191450.

Adding to 1212310010 its reverse (100132121), we get a palindrome (1312442131).

The spelling of 1212310010 in words is "one billion, two hundred twelve million, three hundred ten thousand, ten".

Divisors: 1 2 5 10 19 38 47 94 95 190 235 470 893 1786 4465 8930 135757 271514 678785 1357570 2579383 5158766 6380579 12761158 12896915 25793830 31902895 63805790 121231001 242462002 606155005 1212310010