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67285023312 = 24313432507641
BaseRepresentation
bin111110101010011111…
…111111101001010000
320102200012122100000110
4332222133333221100
52100244431221222
650524343321320
74601246155503
oct765237775120
9212605570013
1067285023312
1126598706991
1211059750240
136463b19080
14338420513a
151b3c0bd30c
hexfaa7ffa50

67285023312 has 80 divisors (see below), whose sum is σ = 191543726528. Its totient is φ = 20221608960.

The previous prime is 67285023283. The next prime is 67285023343. The reversal of 67285023312 is 21332058276.

It is a super-3 number, since 3×672850233123 (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1226989 + ... + 1280652.

Almost surely, 267285023312 is an apocalyptic number.

It is an amenable number.

67285023312 is an abundant number, since it is smaller than the sum of its proper divisors (124258703216).

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

67285023312 is a wasteful number, since it uses less digits than its factorization.

67285023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507708 (or 2507702 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 67285023312 in words is "sixty-seven billion, two hundred eighty-five million, twenty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 43 48 52 78 86 104 129 156 172 208 258 312 344 516 559 624 688 1032 1118 1677 2064 2236 3354 4472 6708 8944 13416 26832 2507641 5015282 7522923 10030564 15045846 20061128 30091692 32599333 40122256 60183384 65198666 97797999 107828563 120366768 130397332 195595998 215657126 260794664 323485689 391191996 431314252 521589328 646971378 782383992 862628504 1293942756 1401771319 1564767984 1725257008 2587885512 2803542638 4205313957 5175771024 5607085276 8410627914 11214170552 16821255828 22428341104 33642511656 67285023312