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68045787012 = 22372671303283
BaseRepresentation
bin111111010111110110…
…000100111110000100
320111122020011010121210
4333113312010332010
52103324210141022
651132041211420
74626144434460
oct772766047604
9214566133553
1068045787012
1126949088a15
1211230490b70
136555611bc8
1434172794a0
151b83c94a0c
hexfd7d84f84

68045787012 has 48 divisors (see below), whose sum is σ = 181523965952. Its totient is φ = 19434310560.

The previous prime is 68045786989. The next prime is 68045787071. The reversal of 68045787012 is 21078754086.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72723 + ... + 376005.

Almost surely, 268045787012 is an apocalyptic number.

It is an amenable number.

68045787012 is an abundant number, since it is smaller than the sum of its proper divisors (113478178940).

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

68045787012 is a wasteful number, since it uses less digits than its factorization.

68045787012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305968 (or 305966 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 68045787012 in words is "sixty-eight billion, forty-five million, seven hundred eighty-seven thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2671 5342 8013 10684 16026 18697 32052 37394 56091 74788 112182 224364 303283 606566 909849 1213132 1819698 2122981 3639396 4245962 6368943 8491924 12737886 25475772 810068893 1620137786 2430206679 3240275572 4860413358 5670482251 9720826716 11340964502 17011446753 22681929004 34022893506 68045787012