Search a number
-
+
68552250 = 2353137989
BaseRepresentation
bin1000001011000…
…00011000111010
311202222211000020
410011200120322
5120022133000
610445151310
71461453534
oct405403072
9152884006
1068552250
1135772358
121ab5b536
1311282880
149166854
156041ba0
hex416063a

68552250 has 128 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 16473600.

The previous prime is 68552219. The next prime is 68552251. The reversal of 68552250 is 5225586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68552251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 770206 + ... + 770294.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 268552250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68552250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94348800).

68552250 is an abundant number, since it is smaller than the sum of its proper divisors (120145350).

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

68552250 is a wasteful number, since it uses less digits than its factorization.

68552250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 68552250 is about 8279.6286148595. The cubic root of 68552250 is about 409.2674804554.

The spelling of 68552250 in words is "sixty-eight million, five hundred fifty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 79 89 125 130 150 158 178 195 237 250 267 325 375 390 395 445 474 534 650 750 790 890 975 1027 1157 1185 1335 1625 1950 1975 2054 2225 2314 2370 2670 3081 3250 3471 3950 4450 4875 5135 5785 5925 6162 6675 6942 7031 9750 9875 10270 11125 11570 11850 13350 14062 15405 17355 19750 21093 22250 25675 28925 29625 30810 33375 34710 35155 42186 51350 57850 59250 66750 70310 77025 86775 91403 105465 128375 144625 154050 173550 175775 182806 210930 256750 274209 289250 351550 385125 433875 457015 527325 548418 770250 867750 878875 914030 1054650 1371045 1757750 2285075 2636625 2742090 4570150 5273250 6855225 11425375 13710450 22850750 34276125 68552250