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68351270 = 25134491171
BaseRepresentation
bin1000001001011…
…11010100100110
311202121121022112
410010233110212
5114444220040
610441001022
71456655561
oct404572446
9152547275
1068351270
1135645359
121aa83172
1311212250
1491134d8
156002365
hex412f526

68351270 has 32 divisors (see below), whose sum is σ = 132904800. Its totient is φ = 25159680.

The previous prime is 68351267. The next prime is 68351281. The reversal of 68351270 is 7215386.

It is a happy number.

It is a super-2 number, since 2×683512702 = 9343792221225800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57785 + ... + 58955.

It is an arithmetic number, because the mean of its divisors is an integer number (4153275).

Almost surely, 268351270 is an apocalyptic number.

68351270 is a deficient number, since it is larger than the sum of its proper divisors (64553530).

68351270 is a wasteful number, since it uses less digits than its factorization.

68351270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 68351270 is about 8267.4826882189. The cubic root of 68351270 is about 408.8671284442.

The spelling of 68351270 in words is "sixty-eight million, three hundred fifty-one thousand, two hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 449 898 1171 2245 2342 4490 5837 5855 11674 11710 15223 29185 30446 58370 76115 152230 525779 1051558 2628895 5257790 6835127 13670254 34175635 68351270