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68363190 = 235574019
BaseRepresentation
bin1000001001100…
…10001110110110
311202122012200000
410010302032312
5120000110230
610441132130
71460035410
oct404621666
9152565600
1068363190
1135653305
121aa8a046
13112177bc
1491179b0
156005b60
hex41323b6

68363190 has 96 divisors (see below), whose sum is σ = 210712320. Its totient is φ = 15621984.

The previous prime is 68363177. The next prime is 68363201. The reversal of 68363190 is 9136386.

It is a happy number.

It is a super-2 number, since 2×683631902 = 9347051493952200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15001 + ... + 19019.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 268363190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68363190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105356160).

68363190 is an abundant number, since it is smaller than the sum of its proper divisors (142349130).

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

68363190 is a wasteful number, since it uses less digits than its factorization.

68363190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 68363190 is about 8268.2035533724. The cubic root of 68363190 is about 408.8908949516.

The spelling of 68363190 in words is "sixty-eight million, three hundred sixty-three thousand, one hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 243 270 315 378 405 486 567 630 810 945 1134 1215 1701 1890 2430 2835 3402 4019 5670 8038 8505 12057 17010 20095 24114 28133 36171 40190 56266 60285 72342 84399 108513 120570 140665 168798 180855 217026 253197 281330 325539 361710 421995 506394 542565 651078 759591 843990 976617 1085130 1265985 1519182 1627695 1953234 2278773 2531970 3255390 3797955 4557546 4883085 6836319 7595910 9766170 11393865 13672638 22787730 34181595 68363190