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268228236 = 223163137131
BaseRepresentation
bin11111111110011…
…01011010001100
3200200201101222010
433333031122030
51022131300421
642341021220
76434621343
oct1777153214
9620641863
10268228236
11128453931
12759b4810
1343755543
14278a2b5a
1518835076
hexffcd68c

268228236 has 24 divisors (see below), whose sum is σ = 629710144. Its totient is φ = 88860240.

The previous prime is 268228217. The next prime is 268228237. The reversal of 268228236 is 632822862.

It is a junction number, because it is equal to n+sod(n) for n = 268228194 and 268228203.

It is not an unprimeable number, because it can be changed into a prime (268228237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66610 + ... + 70521.

Almost surely, 2268228236 is an apocalyptic number.

It is an amenable number.

268228236 is an abundant number, since it is smaller than the sum of its proper divisors (361481908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268228236 is a wasteful number, since it uses less digits than its factorization.

268228236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137301 (or 137299 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 268228236 is about 16377.6749265578. The cubic root of 268228236 is about 644.9135440877.

The spelling of 268228236 in words is "two hundred sixty-eight million, two hundred twenty-eight thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 163 326 489 652 978 1956 137131 274262 411393 548524 822786 1645572 22352353 44704706 67057059 89409412 134114118 268228236