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68740260 = 22352694259
BaseRepresentation
bin1000001100011…
…10010010100100
311210100100220120
410012032102210
5120044142020
610453201540
71463165631
oct406162244
9153310816
1068740260
1135890636
121b0302b0
131131a314
1491b5188
15607c740
hex418e4a4

68740260 has 48 divisors (see below), whose sum is σ = 193233600. Its totient is φ = 18258304.

The previous prime is 68740253. The next prime is 68740267. The reversal of 68740260 is 6204786.

It is an interprime number because it is at equal distance from previous prime (68740253) and next prime (68740267).

It is not an unprimeable number, because it can be changed into a prime (68740267) 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, 14011 + ... + 18269.

It is an arithmetic number, because the mean of its divisors is an integer number (4025700).

Almost surely, 268740260 is an apocalyptic number.

68740260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68740260 is an abundant number, since it is smaller than the sum of its proper divisors (124493340).

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

68740260 is a wasteful number, since it uses less digits than its factorization.

68740260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540 (or 4538 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68740260 is about 8290.9746109851. The cubic root of 68740260 is about 409.6412884735.

The spelling of 68740260 in words is "sixty-eight million, seven hundred forty thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 269 538 807 1076 1345 1614 2690 3228 4035 4259 5380 8070 8518 12777 16140 17036 21295 25554 42590 51108 63885 85180 127770 255540 1145671 2291342 3437013 4582684 5728355 6874026 11456710 13748052 17185065 22913420 34370130 68740260