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68289004 = 2272438893
BaseRepresentation
bin1000001001000…
…00000111101100
311202111102220101
410010200013230
5114440222004
610435400444
71456306210
oct404400754
9152442811
1068289004
11356025a3
121aa53124
13111bcac4
1490d8940
155eddba4
hex41201ec

68289004 has 12 divisors (see below), whose sum is σ = 136578064. Its totient is φ = 29266704.

The previous prime is 68288999. The next prime is 68289049. The reversal of 68289004 is 40098286.

68289004 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219419 + ... + 1219474.

Almost surely, 268289004 is an apocalyptic number.

It is an amenable number.

68289004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68289004 is a wasteful number, since it uses less digits than its factorization.

68289004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438904 (or 2438902 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 68289004 is about 8263.7161132265. The cubic root of 68289004 is about 408.7429354083.

The spelling of 68289004 in words is "sixty-eight million, two hundred eighty-nine thousand, four".

Divisors: 1 2 4 7 14 28 2438893 4877786 9755572 17072251 34144502 68289004