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68101320 = 233571719251
BaseRepresentation
bin1000000111100…
…10010011001000
311202010220110010
410003302103020
5114413220240
610431351520
71454565060
oct403622310
9152126403
1068101320
1135494591
121a9825a0
1311155551
14908a3a0
155ea3280
hex40f24c8

68101320 has 256 divisors, whose sum is σ = 261273600. Its totient is φ = 13824000.

The previous prime is 68101307. The next prime is 68101331. The reversal of 68101320 is 2310186.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271195 + ... + 271445.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 268101320 is an apocalyptic number.

68101320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68101320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130636800).

68101320 is an abundant number, since it is smaller than the sum of its proper divisors (193172280).

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

68101320 is a wasteful number, since it uses less digits than its factorization.

68101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 68101320 is about 8252.3523918941. The cubic root of 68101320 is about 408.3681317930.

The spelling of 68101320 in words is "sixty-eight million, one hundred one thousand, three hundred twenty".