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247052880868 = 221717920296819
BaseRepresentation
bin1110011000010101111…
…1111100101111100100
3212121200112120200200211
43212011133330233210
513021431014141433
6305254452345204
723564125560463
oct3460537745744
9777615520624
10247052880868
1195857a02002
123ba69615204
131a3b2631111
14bd592529da
15665e21d8cd
hex39857fcbe4

247052880868 has 24 divisors (see below), whose sum is σ = 460331877600. Its totient is φ = 115610675328.

The previous prime is 247052880863. The next prime is 247052880881. The reversal of 247052880868 is 868088250742.

It is a super-2 number, since 2×2470528808682 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247052880863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10136238 + ... + 10160581.

It is an arithmetic number, because the mean of its divisors is an integer number (19180494900).

Almost surely, 2247052880868 is an apocalyptic number.

It is an amenable number.

247052880868 is a deficient number, since it is larger than the sum of its proper divisors (213278996732).

247052880868 is a wasteful number, since it uses less digits than its factorization.

247052880868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20297019 (or 20297017 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 58.

The spelling of 247052880868 in words is "two hundred forty-seven billion, fifty-two million, eight hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 179 358 716 3043 6086 12172 20296819 40593638 81187276 345045923 690091846 1380183692 3633130601 7266261202 14532522404 61763220217 123526440434 247052880868