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68397258 = 2314976507
BaseRepresentation
bin1000001001110…
…10100011001010
311202200221101210
410010322203022
5120002203013
610441553550
71460236626
oct404724312
9152627353
1068397258
1135676966
121aaa58b6
131122a167
149126186
156010cc3
hex413a8ca

68397258 has 16 divisors (see below), whose sum is σ = 137714400. Its totient is φ = 22645776.

The previous prime is 68397257. The next prime is 68397269. The reversal of 68397258 is 85279386.

It is not an unprimeable number, because it can be changed into a prime (68397257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37360 + ... + 39147.

It is an arithmetic number, because the mean of its divisors is an integer number (8607150).

Almost surely, 268397258 is an apocalyptic number.

68397258 is an abundant number, since it is smaller than the sum of its proper divisors (69317142).

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

68397258 is a wasteful number, since it uses less digits than its factorization.

68397258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76661.

The product of its digits is 725760, while the sum is 48.

The square root of 68397258 is about 8270.2634782696. The cubic root of 68397258 is about 408.9588056780.

The spelling of 68397258 in words is "sixty-eight million, three hundred ninety-seven thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 149 298 447 894 76507 153014 229521 459042 11399543 22799086 34198629 68397258