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12310142212 = 224909626917
BaseRepresentation
bin10110111011011110…
…11101110100000100
31011202220201000111001
423131233131310010
5200202344022322
65353305023044
7614025324304
oct133557356404
934686630431
1012310142212
115247833055
122476784a84
1312124a3b24
1484acb1604
154c0ad4827
hex2ddbddd04

12310142212 has 12 divisors (see below), whose sum is σ = 21547171660. Its totient is φ = 6153807456.

The previous prime is 12310142183. The next prime is 12310142213. The reversal of 12310142212 is 21224101321.

It can be written as a sum of positive squares in 2 ways, for example, as 6760786176 + 5549356036 = 82224^2 + 74494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12310142212.

It is not an unprimeable number, because it can be changed into a prime (12310142213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293823 + ... + 333094.

Almost surely, 212310142212 is an apocalyptic number.

It is an amenable number.

12310142212 is a deficient number, since it is larger than the sum of its proper divisors (9237029448).

12310142212 is a wasteful number, since it uses less digits than its factorization.

12310142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631830 (or 631828 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12310142212 its reverse (21224101321), we get a palindrome (33534243533).

The spelling of 12310142212 in words is "twelve billion, three hundred ten million, one hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 4 4909 9818 19636 626917 1253834 2507668 3077535553 6155071106 12310142212