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312101130112 = 2719764319249
BaseRepresentation
bin1001000101010101010…
…11010100111110000000
31002211120212100010112021
410202222223110332000
520103140342130422
6355213254211224
731356104556142
oct4425253247600
91084525303467
10312101130112
111103a7a51482
12505a2053b14
132357ac11425
141116a366c92
1581b9c58dc7
hex48aaad4f80

312101130112 has 64 divisors (see below), whose sum is σ = 625924530000. Its totient is φ = 155008917504.

The previous prime is 312101130101. The next prime is 312101130127. The reversal of 312101130112 is 211031101213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 16204264 + ... + 16223512.

Almost surely, 2312101130112 is an apocalyptic number.

312101130112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312101130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312962265000).

312101130112 is an abundant number, since it is smaller than the sum of its proper divisors (313823399888).

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

312101130112 is a wasteful number, since it uses less digits than its factorization.

312101130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20103 (or 20091 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 312101130112 its reverse (211031101213), we get a palindrome (523132231325).

The spelling of 312101130112 in words is "three hundred twelve billion, one hundred one million, one hundred thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 64 128 197 394 643 788 1286 1576 2572 3152 5144 6304 10288 12608 19249 20576 25216 38498 41152 76996 82304 126671 153992 253342 307984 506684 615968 1013368 1231936 2026736 2463872 3792053 4053472 7584106 8106944 12377107 15168212 16213888 24754214 30336424 49508428 60672848 99016856 121345696 198033712 242691392 396067424 485382784 792134848 1584269696 2438290079 4876580158 9753160316 19506320632 39012641264 78025282528 156050565056 312101130112