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68732307360 = 2532547730769
BaseRepresentation
bin100000000000011000…
…0111100011110100000
320120102001221222111100
41000000300330132200
52111230432313420
651324123514400
74652151654513
oct1000060743640
9216361858440
1068732307360
1127170660902
12113a2388a00
136634911972
143480504d7a
151bc41a3190
hex1000c3c7a0

68732307360 has 72 divisors (see below), whose sum is σ = 234549003780. Its totient is φ = 18328614912.

The previous prime is 68732307337. The next prime is 68732307383. The reversal of 68732307360 is 6370323786.

It is an interprime number because it is at equal distance from previous prime (68732307337) and next prime (68732307383).

It can be written as a sum of positive squares in 2 ways, for example, as 64713254544 + 4019052816 = 254388^2 + 63396^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23863945 + ... + 23866824.

Almost surely, 268732307360 is an apocalyptic number.

68732307360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68732307360 is an abundant number, since it is smaller than the sum of its proper divisors (165816696420).

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

68732307360 is a wasteful number, since it uses less digits than its factorization.

68732307360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47730790 (or 47730779 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 68732307360 in words is "sixty-eight billion, seven hundred thirty-two million, three hundred seven thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 47730769 95461538 143192307 190923076 238653845 286384614 381846152 429576921 477307690 572769228 715961535 763692304 859153842 954615380 1145538456 1431923070 1527384608 1718307684 1909230760 2147884605 2291076912 2863846140 3436615368 3818461520 4295769210 4582153824 5727692280 6873230736 7636923040 8591538420 11455384560 13746461472 17183076840 22910769120 34366153680 68732307360