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268101889 = 1137976791
BaseRepresentation
bin11111111101011…
…10100100000001
3200200110222122121
433332232210001
51022113230024
642334204241
76433554106
oct1776564401
9620428577
10268101889
11128377a10
1275953681
134370cb93
142786caad
151880c8e4
hexffae901

268101889 has 16 divisors (see below), whose sum is σ = 303520896. Its totient is φ = 234662400.

The previous prime is 268101887. The next prime is 268101901. The reversal of 268101889 is 988101862.

It is not a de Polignac number, because 268101889 - 21 = 268101887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268101887) 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, 36084 + ... + 42874.

It is an arithmetic number, because the mean of its divisors is an integer number (18970056).

Almost surely, 2268101889 is an apocalyptic number.

It is an amenable number.

268101889 is a deficient number, since it is larger than the sum of its proper divisors (35419007).

268101889 is a wasteful number, since it uses less digits than its factorization.

268101889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936.

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 268101889 is about 16373.8171786545. The cubic root of 268101889 is about 644.8122675404.

The spelling of 268101889 in words is "two hundred sixty-eight million, one hundred one thousand, eight hundred eighty-nine".

Divisors: 1 11 37 97 407 1067 3589 6791 39479 74701 251267 658727 2763937 7245997 24372899 268101889