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12031442302 = 21131791072087
BaseRepresentation
bin10110011010010000…
…10011110101111110
31011001111021121002011
423031020103311332
5144120022123202
65305511321434
7604102400155
oct131510236576
934044247064
1012031442302
115114487750
1223b938027a
131199823139
14821c8459c
154a63d1bd7
hex2cd213d7e

12031442302 has 64 divisors (see below), whose sum is σ = 20782448640. Its totient is φ = 5174114400.

The previous prime is 12031442287. The next prime is 12031442359. The reversal of 12031442302 is 20324413021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5763903 + ... + 5765989.

It is an arithmetic number, because the mean of its divisors is an integer number (324725760).

Almost surely, 212031442302 is an apocalyptic number.

12031442302 is a deficient number, since it is larger than the sum of its proper divisors (8751006338).

12031442302 is a wasteful number, since it uses less digits than its factorization.

12031442302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12031442302 its reverse (20324413021), we get a palindrome (32355855323).

The spelling of 12031442302 in words is "twelve billion, thirty-one million, four hundred forty-two thousand, three hundred two".

Divisors: 1 2 11 22 31 62 79 107 158 214 341 682 869 1177 1738 2087 2354 2449 3317 4174 4898 6634 8453 16906 22957 26939 36487 45914 53878 64697 72974 92983 129394 164873 185966 223309 262043 329746 446618 524086 711667 1423334 1813603 2456399 2882473 3627206 4912798 5111063 5764946 6922579 10222126 13845158 17641411 35282822 56221693 76148369 112443386 152296738 194055521 388111042 546883741 1093767482 6015721151 12031442302