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247386068 = 22232688979
BaseRepresentation
bin11101011111011…
…00111111010100
3122020111111212222
432233230333110
51001312323233
640314201512
76062514116
oct1657547724
9566444788
10247386068
111177088a6
126aa23298
133c3389b7
1424bd93b6
1516ab9898
hexebecfd4

247386068 has 12 divisors (see below), whose sum is σ = 451748640. Its totient is φ = 118315032.

The previous prime is 247386031. The next prime is 247386071. The reversal of 247386068 is 860683742.

It is a super-2 number, since 2×2473860682 = 122399733281001248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344398 + ... + 1344581.

It is an arithmetic number, because the mean of its divisors is an integer number (37645720).

Almost surely, 2247386068 is an apocalyptic number.

It is an amenable number.

247386068 is a deficient number, since it is larger than the sum of its proper divisors (204362572).

247386068 is a wasteful number, since it uses less digits than its factorization.

247386068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689006 (or 2689004 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 247386068 is about 15728.5113090845. The cubic root of 247386068 is about 627.7572628086.

The spelling of 247386068 in words is "two hundred forty-seven million, three hundred eighty-six thousand, sixty-eight".

Divisors: 1 2 4 23 46 92 2688979 5377958 10755916 61846517 123693034 247386068