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68244888 = 23329313163
BaseRepresentation
bin1000001000101…
…01010110011000
311202102012101110
410010111112120
5114432314023
610434420320
71456033455
oct404252630
9152365343
1068244888
1135582438
121aa316a0
13111a59ba
1490c682c
155ed0a93
hex4115598

68244888 has 64 divisors (see below), whose sum is σ = 182246400. Its totient is φ = 21248640.

The previous prime is 68244871. The next prime is 68244889. The reversal of 68244888 is 88844286.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68244889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19995 + ... + 23157.

It is an arithmetic number, because the mean of its divisors is an integer number (2847600).

Almost surely, 268244888 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 68244888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91123200).

68244888 is an abundant number, since it is smaller than the sum of its proper divisors (114001512).

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

68244888 is a wasteful number, since it uses less digits than its factorization.

68244888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 3228 counting only the distinct ones).

The product of its digits is 786432, while the sum is 48.

The square root of 68244888 is about 8261.0464228208. The cubic root of 68244888 is about 408.6548978683.

The spelling of 68244888 in words is "sixty-eight million, two hundred forty-four thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 29 31 58 62 87 93 116 124 174 186 232 248 348 372 696 744 899 1798 2697 3163 3596 5394 6326 7192 9489 10788 12652 18978 21576 25304 37956 75912 91727 98053 183454 196106 275181 294159 366908 392212 550362 588318 733816 784424 1100724 1176636 2201448 2353272 2843537 5687074 8530611 11374148 17061222 22748296 34122444 68244888