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268228089 = 32318211171
BaseRepresentation
bin11111111110011…
…01010111111001
3200200201101202200
433333031113321
51022131244324
642341020413
76434621043
oct1777152771
9620641680
10268228089
11128453808
12759b4709
134375545c
14278a2a93
1518834ec9
hexffcd5f9

268228089 has 24 divisors (see below), whose sum is σ = 400767744. Its totient is φ = 172692000.

The previous prime is 268228039. The next prime is 268228123. The reversal of 268228089 is 980822862.

It is not a de Polignac number, because 268228089 - 27 = 268227961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268228039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228474 + ... + 229644.

It is an arithmetic number, because the mean of its divisors is an integer number (16698656).

Almost surely, 2268228089 is an apocalyptic number.

It is an amenable number.

268228089 is a deficient number, since it is larger than the sum of its proper divisors (132539655).

268228089 is a wasteful number, since it uses less digits than its factorization.

268228089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 268228089 is about 16377.6704387407. The cubic root of 268228089 is about 644.9134262747.

The spelling of 268228089 in words is "two hundred sixty-eight million, two hundred twenty-eight thousand, eighty-nine".

Divisors: 1 3 9 31 93 279 821 1171 2463 3513 7389 10539 25451 36301 76353 108903 229059 326709 961391 2884173 8652519 29803121 89409363 268228089