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312730460237 = 13371423456899
BaseRepresentation
bin1001000110100000011…
…00000010000001001101
31002220012201112102011102
410203100030002001031
520110432444211422
6355355535032445
731410516023636
oct4432014020115
91086181472142
10312730460237
111106a0212518
125073896b725
132364b409110
14111c9b8688d
15820511c192
hex48d030204d

312730460237 has 16 divisors (see below), whose sum is σ = 346132819200. Its totient is φ = 280674268992.

The previous prime is 312730460209. The next prime is 312730460249. The reversal of 312730460237 is 732064037213.

It is not a de Polignac number, because 312730460237 - 26 = 312730460173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312730460237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312730460267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456014 + ... + 912912.

It is an arithmetic number, because the mean of its divisors is an integer number (21633301200).

Almost surely, 2312730460237 is an apocalyptic number.

312730460237 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

312730460237 is a deficient number, since it is larger than the sum of its proper divisors (33402358963).

312730460237 is a wasteful number, since it uses less digits than its factorization.

312730460237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458372.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 312730460237 in words is "three hundred twelve billion, seven hundred thirty million, four hundred sixty thousand, two hundred thirty-seven".

Divisors: 1 13 37 481 1423 18499 52651 456899 684463 5939687 16905263 219768419 650167277 8452174601 24056189249 312730460237