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68470270 = 2511271797
BaseRepresentation
bin1000001010011…
…00010111111110
311202211122112221
410011030113332
5120012022040
610443315554
71460662531
oct405142776
9152748487
1068470270
1135716800
121ab1bbba
131125446b
149144a18
15602774a
hex414c5fe

68470270 has 48 divisors (see below), whose sum is σ = 137549664. Its totient is φ = 24516800.

The previous prime is 68470249. The next prime is 68470279. The reversal of 68470270 is 7207486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68470279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85512 + ... + 86308.

It is an arithmetic number, because the mean of its divisors is an integer number (2865618).

Almost surely, 268470270 is an apocalyptic number.

68470270 is an abundant number, since it is smaller than the sum of its proper divisors (69079394).

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

68470270 is a wasteful number, since it uses less digits than its factorization.

68470270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 68470270 is about 8274.6764287191. The cubic root of 68470270 is about 409.1042709740.

The spelling of 68470270 in words is "sixty-eight million, four hundred seventy thousand, two hundred seventy".

Divisors: 1 2 5 10 11 22 55 71 110 121 142 242 355 605 710 781 797 1210 1562 1594 3905 3985 7810 7970 8591 8767 17182 17534 42955 43835 56587 85910 87670 96437 113174 192874 282935 482185 565870 622457 964370 1244914 3112285 6224570 6847027 13694054 34235135 68470270