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68456700 = 223252135851
BaseRepresentation
bin1000001010010…
…01000011111100
311202210221221100
410011021003330
5120011103300
610443133100
71460605134
oct405110374
9152727840
1068456700
1135707594
121ab14190
131124b230
14913dac4
156023700
hex41490fc

68456700 has 108 divisors (see below), whose sum is σ = 231118888. Its totient is φ = 16848000.

The previous prime is 68456681. The next prime is 68456719. The reversal of 68456700 is 765486.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68456681) and next prime (68456719).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8775 + ... + 14625.

Almost surely, 268456700 is an apocalyptic number.

68456700 is a gapful number since it is divisible by the number (60) 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 68456700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115559444).

68456700 is an abundant number, since it is smaller than the sum of its proper divisors (162662188).

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

68456700 is a wasteful number, since it uses less digits than its factorization.

68456700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 5874 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 68456700 is about 8273.8564164481. The cubic root of 68456700 is about 409.0772426411.

The spelling of 68456700 in words is "sixty-eight million, four hundred fifty-six thousand, seven hundred".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 25 26 30 36 39 45 50 52 60 65 75 78 90 100 117 130 150 156 180 195 225 234 260 300 325 390 450 468 585 650 780 900 975 1170 1300 1950 2340 2925 3900 5850 5851 11700 11702 17553 23404 29255 35106 52659 58510 70212 76063 87765 105318 117020 146275 152126 175530 210636 228189 263295 292550 304252 351060 380315 438825 456378 526590 585100 684567 760630 877650 912756 1053180 1140945 1316475 1369134 1521260 1755300 1901575 2281890 2632950 2738268 3422835 3803150 4563780 5265900 5704725 6845670 7606300 11409450 13691340 17114175 22818900 34228350 68456700