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268768989867862 = 21124325828271177
BaseRepresentation
bin111101000111000110101000…
…001010101110111101010110
31022020122001202000111210020001
4331013012220022232331112
5240212002342401232422
62351342434105401514
7110416630056435151
oct7507065012567526
91266561660453201
10268768989867862
1178702319a95100
1226189292a9929a
13b6c7a64c6bb73
144a526ba6ccc98
15211147173c227
hexf471a82aef56

268768989867862 has 24 divisors (see below), whose sum is σ = 453441128800968. Its totient is φ = 119326612833120.

The previous prime is 268768989867857. The next prime is 268768989867901.

268768989867862 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12914125183 + ... + 12914145994.

It is an arithmetic number, because the mean of its divisors is an integer number (18893380366707).

Almost surely, 2268768989867862 is an apocalyptic number.

268768989867862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

268768989867862 is a deficient number, since it is larger than the sum of its proper divisors (184672138933106).

268768989867862 is a wasteful number, since it uses less digits than its factorization.

268768989867862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25828271244 (or 25828271233 counting only the distinct ones).

The product of its digits is 674211299328, while the sum is 100.

The spelling of 268768989867862 in words is "two hundred sixty-eight trillion, seven hundred sixty-eight billion, nine hundred eighty-nine million, eight hundred sixty-seven thousand, eight hundred sixty-two".

Divisors: 1 2 11 22 43 86 121 242 473 946 5203 10406 25828271177 51656542354 284110982947 568221965894 1110615660611 2221231321222 3125220812417 6250441624834 12216772266721 24433544533442 134384494933931 268768989867862