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268482862681 = 111131931111857
BaseRepresentation
bin1111101000001011010…
…0110101111001011001
3221200000000212120012221
43322002310311321121
513344323103101211
6323201143304041
725253153451535
oct3720264657131
9850000776187
10268482862681
11a3954638580
124404a44b021
131c419354127
14cdcd412bc5
156eb57a2c71
hex3e82d35e59

268482862681 has 16 divisors (see below), whose sum is σ = 295638009408. Its totient is φ = 241787929600.

The previous prime is 268482862679. The next prime is 268482862699. The reversal of 268482862681 is 186268284862.

It is a cyclic number.

It is not a de Polignac number, because 268482862681 - 21 = 268482862679 is a prime.

It is a super-2 number, since 2×2684828626812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268482862621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2344305 + ... + 2456161.

It is an arithmetic number, because the mean of its divisors is an integer number (18477375588).

Almost surely, 2268482862681 is an apocalyptic number.

It is an amenable number.

268482862681 is a deficient number, since it is larger than the sum of its proper divisors (27155146727).

268482862681 is a wasteful number, since it uses less digits than its factorization.

268482862681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113912.

The product of its digits is 28311552, while the sum is 61.

The spelling of 268482862681 in words is "two hundred sixty-eight billion, four hundred eighty-two million, eight hundred sixty-two thousand, six hundred eighty-one".

Divisors: 1 11 113 1243 1931 21241 111857 218203 1230427 2400233 12639841 139038251 215995867 2375954537 24407532971 268482862681