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12113331210 = 2325373637637
BaseRepresentation
bin10110100100000001…
…01100010000001010
31011021012100222112200
423102000230100022
5144302003044320
65321554421030
7606115421301
oct132200542012
934235328480
1012113331210
115156729032
122420891776
1311b0795206
1482cabd438
154ad6aa290
hex2d202c40a

12113331210 has 48 divisors (see below), whose sum is σ = 32345877096. Its totient is φ = 3142917504.

The previous prime is 12113331203. The next prime is 12113331257. The reversal of 12113331210 is 1213331121.

12113331210 is a `hidden beast` number, since 1 + 211 + 333 + 121 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8981921529 + 3131409681 = 94773^2 + 55959^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1815489 + ... + 1822148.

Almost surely, 212113331210 is an apocalyptic number.

12113331210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12113331210 is an abundant number, since it is smaller than the sum of its proper divisors (20232545886).

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

12113331210 is a wasteful number, since it uses less digits than its factorization.

12113331210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637687 (or 3637684 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12113331210 its reverse (1213331121), we get a palindrome (13326662331).

The spelling of 12113331210 in words is "twelve billion, one hundred thirteen million, three hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 3330 3637637 7275274 10912911 18188185 21825822 32738733 36376370 54564555 65477466 109129110 134592569 163693665 269185138 327387330 403777707 672962845 807555414 1211333121 1345925690 2018888535 2422666242 4037777070 6056665605 12113331210