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3131330021132 = 2217136133834659
BaseRepresentation
bin101101100100010001110…
…100000100011100001100
3102002100111202212121001212
4231210101310010130030
5402300430441134012
610354302501353552
7442142164006055
oct55442164043414
912070452777055
103131330021132
11aa7a98188425
12426a581088b8
1319938b121191
14ab7b2c9972c
15566be227b22
hex2d911d0470c

3131330021132 has 24 divisors (see below), whose sum is σ = 5806433671920. Its totient is φ = 1472484316160.

The previous prime is 3131330021111. The next prime is 3131330021177. The reversal of 3131330021132 is 2311200331313.

It is a super-2 number, since 2×31313300211322 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131330021098 and 3131330021107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16824782 + ... + 17009877.

It is an arithmetic number, because the mean of its divisors is an integer number (241934736330).

Almost surely, 23131330021132 is an apocalyptic number.

It is an amenable number.

3131330021132 is a deficient number, since it is larger than the sum of its proper divisors (2675103650788).

3131330021132 is a wasteful number, since it uses less digits than its factorization.

3131330021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33836041 (or 33836039 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3131330021132 its reverse (2311200331313), we get a palindrome (5442530352445).

The spelling of 3131330021132 in words is "three trillion, one hundred thirty-one billion, three hundred thirty million, twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 1361 2722 5444 23137 46274 92548 33834659 67669318 135338636 575189203 1150378406 2300756812 46048970899 92097941798 184195883596 782832505283 1565665010566 3131330021132