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68289200 = 24527293
BaseRepresentation
bin1000001001000…
…00001010110000
311202111110011122
410010200022300
5114440223300
610435401412
71456306610
oct404401260
9152443148
1068289200
1135602761
121aa53268
13111bcc15
1490d8a40
155eddc85
hex41202b0

68289200 has 120 divisors (see below), whose sum is σ = 194198880. Its totient is φ = 22606080.

The previous prime is 68289197. The next prime is 68289223. The reversal of 68289200 is 298286.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2354786 + ... + 2354814.

It is an arithmetic number, because the mean of its divisors is an integer number (1618324).

Almost surely, 268289200 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 68289200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97099440).

68289200 is an abundant number, since it is smaller than the sum of its proper divisors (125909680).

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

68289200 is an equidigital number, since it uses as much as digits as its factorization.

68289200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 68289200 is about 8263.7279722895. The cubic root of 68289200 is about 408.7433264598.

The spelling of 68289200 in words is "sixty-eight million, two hundred eighty-nine thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 29 35 40 50 56 58 70 80 100 112 116 140 145 175 200 203 232 280 290 350 400 406 464 560 580 700 725 812 841 1015 1160 1400 1450 1624 1682 2030 2320 2800 2900 3248 3364 4060 4205 5075 5800 5887 6728 8120 8410 10150 11600 11774 13456 16240 16820 20300 21025 23548 24389 29435 33640 40600 42050 47096 48778 58870 67280 81200 84100 94192 97556 117740 121945 147175 168200 170723 195112 235480 243890 294350 336400 341446 390224 470960 487780 588700 609725 682892 853615 975560 1177400 1219450 1365784 1707230 1951120 2354800 2438900 2731568 3414460 4268075 4877800 6828920 8536150 9755600 13657840 17072300 34144600 68289200