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312101101140 = 22355521994201
BaseRepresentation
bin1001000101010101010…
…11001101111001010100
31002211120212021122210020
410202222223031321110
520103140340214030
6355213253425140
731356104405523
oct4425253157124
91084525248706
10312101101140
111103a7a31734
12505a203b1b0
132357ac0119a
141116a35a4ba
1581b9c50510
hex48aaacde54

312101101140 has 48 divisors (see below), whose sum is σ = 873908185920. Its totient is φ = 83224569600.

The previous prime is 312101101129. The next prime is 312101101141. The reversal of 312101101140 is 41101101213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312101101141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3266040 + ... + 3360240.

It is an arithmetic number, because the mean of its divisors is an integer number (18206420540).

Almost surely, 2312101101140 is an apocalyptic number.

312101101140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312101101140 is an abundant number, since it is smaller than the sum of its proper divisors (561807084780).

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

312101101140 is a wasteful number, since it uses less digits than its factorization.

312101101140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149432 (or 149430 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 312101101140 its reverse (41101101213), we get a palindrome (353202202353).

The spelling of 312101101140 in words is "three hundred twelve billion, one hundred one million, one hundred one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 55219 94201 110438 165657 188402 220876 276095 282603 331314 376804 471005 552190 565206 662628 828285 942010 1104380 1130412 1413015 1656570 1884020 2826030 3313140 5652060 5201685019 10403370038 15605055057 20806740076 26008425095 31210110114 52016850190 62420220228 78025275285 104033700380 156050550570 312101101140