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31130031011132 = 2241243717788653
BaseRepresentation
bin1110001010000000001100…
…11100001011010100111100
311002020000001101101221212102
413011000012130023110330
513040013300414324012
6150112534441324232
76362033121452114
oct705000634132474
9132200041357772
1031130031011132
119a12198a47209
1235a9260496678
13144a71ab498a1
147989b7052044
1538eb6be7c2c2
hex1c500670b53c

31130031011132 has 24 divisors (see below), whose sum is σ = 55808572134672. Its totient is φ = 15184755939200.

The previous prime is 31130031011089. The next prime is 31130031011201. The reversal of 31130031011132 is 23111013003113.

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 7 ways as a sum of consecutive naturals, for example, 102518 + ... + 7891170.

It is an arithmetic number, because the mean of its divisors is an integer number (2325357172278).

Almost surely, 231130031011132 is an apocalyptic number.

It is an amenable number.

31130031011132 is a deficient number, since it is larger than the sum of its proper divisors (24678541123540).

31130031011132 is a wasteful number, since it uses less digits than its factorization.

31130031011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813069 (or 7813067 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31130031011132 its reverse (23111013003113), we get a palindrome (54241044014245).

The spelling of 31130031011132 in words is "thirty-one trillion, one hundred thirty billion, thirty-one million, eleven thousand, one hundred thirty-two".

Divisors: 1 2 4 41 82 164 24371 48742 97484 999211 1998422 3996844 7788653 15577306 31154612 319334773 638669546 1277339092 189817262263 379634524526 759269049052 7782507752783 15565015505566 31130031011132