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68389010 = 2510936257
BaseRepresentation
bin1000001001110…
…00100010010010
311202200112002022
410010320202102
5120001422020
610441451442
71460203604
oct404704222
9152615068
1068389010
1135670748
121aaa0b82
1311226491
149123174
15600d625
hex4138892

68389010 has 16 divisors (see below), whose sum is σ = 123232536. Its totient is φ = 27326208.

The previous prime is 68389001. The next prime is 68389021. The reversal of 68389010 is 1098386.

It can be written as a sum of positive squares in 4 ways, for example, as 65399569 + 2989441 = 8087^2 + 1729^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7802 + ... + 14058.

Almost surely, 268389010 is an apocalyptic number.

68389010 is a deficient number, since it is larger than the sum of its proper divisors (54843526).

68389010 is a wasteful number, since it uses less digits than its factorization.

68389010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 68389010 is about 8269.7648092313. The cubic root of 68389010 is about 408.9423662869.

The spelling of 68389010 in words is "sixty-eight million, three hundred eighty-nine thousand, ten".

Divisors: 1 2 5 10 1093 2186 5465 6257 10930 12514 31285 62570 6838901 13677802 34194505 68389010