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68030060 = 2257796151
BaseRepresentation
bin1000000111000…
…00111001101100
311202000021200212
410003200321230
5114403430220
610430041552
71454150240
oct403407154
9152007625
1068030060
1135445a9a
121a9492b8
131112bc97
14906c420
155e8c0c5
hex40e0e6c

68030060 has 48 divisors (see below), whose sum is σ = 165365760. Its totient is φ = 23025600.

The previous prime is 68030059. The next prime is 68030069. The reversal of 68030060 is 6003086.

68030060 = T281 + T282 + ... + T754.

It is not an unprimeable number, because it can be changed into a prime (68030069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7985 + ... + 14135.

It is an arithmetic number, because the mean of its divisors is an integer number (3445120).

Almost surely, 268030060 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 68030060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82682880).

68030060 is an abundant number, since it is smaller than the sum of its proper divisors (97335700).

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

68030060 is a wasteful number, since it uses less digits than its factorization.

68030060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246 (or 6244 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 68030060 is about 8248.0337050718. The cubic root of 68030060 is about 408.2256457199.

The spelling of 68030060 in words is "sixty-eight million, thirty thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 79 140 158 316 395 553 790 1106 1580 2212 2765 5530 6151 11060 12302 24604 30755 43057 61510 86114 123020 172228 215285 430570 485929 861140 971858 1943716 2429645 3401503 4859290 6803006 9718580 13606012 17007515 34015030 68030060