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68330619 = 3271084613
BaseRepresentation
bin1000001001010…
…10010001111011
311202120112222200
410010222101323
5114443034434
610440321243
71456541430
oct404522173
9152515880
1068330619
1135630895
121aa73223
1311205a26
149109b87
155eeb199
hex412a47b

68330619 has 12 divisors (see below), whose sum is σ = 112799856. Its totient is φ = 39046032.

The previous prime is 68330617. The next prime is 68330651. The reversal of 68330619 is 91603386.

It is a happy number.

68330619 is a `hidden beast` number, since 6 + 8 + 3 + 30 + 619 = 666.

It is not a de Polignac number, because 68330619 - 21 = 68330617 is a prime.

It is a super-2 number, since 2×683306192 = 9338146985846322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68330611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542244 + ... + 542369.

It is an arithmetic number, because the mean of its divisors is an integer number (9399988).

Almost surely, 268330619 is an apocalyptic number.

68330619 is a deficient number, since it is larger than the sum of its proper divisors (44469237).

68330619 is a wasteful number, since it uses less digits than its factorization.

68330619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084626 (or 1084623 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 68330619 is about 8266.2336647351. The cubic root of 68330619 is about 408.8259472267.

The spelling of 68330619 in words is "sixty-eight million, three hundred thirty thousand, six hundred nineteen".

Divisors: 1 3 7 9 21 63 1084613 3253839 7592291 9761517 22776873 68330619