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68094900 = 223252292609
BaseRepresentation
bin1000000111100…
…00101110110100
311202010120122100
410003300232310
5114413014100
610431302100
71454540256
oct403605664
9152116570
1068094900
113548a785
121a97a930
1311152653
149087cd6
155ea1400
hex40f0bb4

68094900 has 108 divisors (see below), whose sum is σ = 220884300. Its totient is φ = 17525760.

The previous prime is 68094863. The next prime is 68094947. The reversal of 68094900 is 949086.

It can be written as a sum of positive squares in 6 ways, for example, as 1313316 + 66781584 = 1146^2 + 8172^2 .

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24796 + ... + 27404.

It is an arithmetic number, because the mean of its divisors is an integer number (2045225).

Almost surely, 268094900 is an apocalyptic number.

68094900 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 68094900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110442150).

68094900 is an abundant number, since it is smaller than the sum of its proper divisors (152789400).

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

68094900 is a wasteful number, since it uses less digits than its factorization.

68094900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 68094900 is about 8251.9634027303. The cubic root of 68094900 is about 408.3552989248.

The spelling of 68094900 in words is "sixty-eight million, ninety-four thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 29 30 36 45 50 58 60 75 87 90 100 116 145 150 174 180 225 261 290 300 348 435 450 522 580 725 870 900 1044 1305 1450 1740 2175 2609 2610 2900 4350 5218 5220 6525 7827 8700 10436 13045 13050 15654 23481 26090 26100 31308 39135 46962 52180 65225 75661 78270 93924 117405 130450 151322 156540 195675 226983 234810 260900 302644 378305 391350 453966 469620 587025 680949 756610 782700 907932 1134915 1174050 1361898 1513220 1891525 2269830 2348100 2723796 3404745 3783050 4539660 5674575 6809490 7566100 11349150 13618980 17023725 22698300 34047450 68094900