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68677700 = 22527137547
BaseRepresentation
bin1000001011111…
…11000001000100
311210020012002112
410011333001010
5120040141300
610452000152
71462515350
oct405770104
9153205075
1068677700
1135848633
121b000058
13112c79c0
14919a460
156068e35
hex417f044

68677700 has 72 divisors (see below), whose sum is σ = 183446592. Its totient is φ = 21732480.

The previous prime is 68677691. The next prime is 68677709. The reversal of 68677700 is 777686.

It is an interprime number because it is at equal distance from previous prime (68677691) and next prime (68677709).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68677709) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5327 + ... + 12873.

Almost surely, 268677700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68677700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91723296).

68677700 is an abundant number, since it is smaller than the sum of its proper divisors (114768892).

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

68677700 is a wasteful number, since it uses less digits than its factorization.

68677700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581 (or 7574 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 68677700 is about 8287.2009749975. The cubic root of 68677700 is about 409.5169802573.

The spelling of 68677700 in words is "sixty-eight million, six hundred seventy-seven thousand, seven hundred".

Divisors: 1 2 4 5 7 10 13 14 20 25 26 28 35 50 52 65 70 91 100 130 140 175 182 260 325 350 364 455 650 700 910 1300 1820 2275 4550 7547 9100 15094 30188 37735 52829 75470 98111 105658 150940 188675 196222 211316 264145 377350 392444 490555 528290 686777 754700 981110 1056580 1320725 1373554 1962220 2452775 2641450 2747108 3433885 4905550 5282900 6867770 9811100 13735540 17169425 34338850 68677700