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68247200 = 2552721741
BaseRepresentation
bin1000001000101…
…01111010100000
311202102022120002
410010111322200
5114432402300
610434435132
71456043300
oct404257240
9152368502
1068247200
113558414a
121aa32aa8
13111a6a78
1490c7600
155ed15d5
hex4115ea0

68247200 has 108 divisors (see below), whose sum is σ = 193921182. Its totient is φ = 23385600.

The previous prime is 68247191. The next prime is 68247209. The reversal of 68247200 is 274286.

It is an interprime number because it is at equal distance from previous prime (68247191) and next prime (68247209).

It can be written as a sum of positive squares in 3 ways, for example, as 25684624 + 42562576 = 5068^2 + 6524^2 .

It is not an unprimeable number, because it can be changed into a prime (68247209) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38330 + ... + 40070.

Almost surely, 268247200 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 68247200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96960591).

68247200 is an abundant number, since it is smaller than the sum of its proper divisors (125673982).

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

68247200 is a wasteful number, since it uses less digits than its factorization.

68247200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 68247200 is about 8261.1863554819. The cubic root of 68247200 is about 408.6595126191.

The spelling of 68247200 in words is "sixty-eight million, two hundred forty-seven thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 70 80 98 100 112 140 160 175 196 200 224 245 280 350 392 400 490 560 700 784 800 980 1120 1225 1400 1568 1741 1960 2450 2800 3482 3920 4900 5600 6964 7840 8705 9800 12187 13928 17410 19600 24374 27856 34820 39200 43525 48748 55712 60935 69640 85309 87050 97496 121870 139280 170618 174100 194992 243740 278560 304675 341236 348200 389984 426545 487480 609350 682472 696400 853090 974960 1218700 1364944 1392800 1706180 1949920 2132725 2437400 2729888 3412360 4265450 4874800 6824720 8530900 9749600 13649440 17061800 34123600 68247200