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168368260 = 2258418413
BaseRepresentation
bin10100000100100…
…01100010000100
3102201210222211111
422002101202010
5321100241020
624412414404
74113051364
oct1202214204
9381728744
10168368260
1187048625
1248477404
1328b606b8
141850a9a4
15ebabd5a
hexa091884

168368260 has 12 divisors (see below), whose sum is σ = 353573388. Its totient is φ = 67347296.

The previous prime is 168368209. The next prime is 168368261. The reversal of 168368260 is 62863861.

It can be written as a sum of positive squares in 2 ways, for example, as 78004224 + 90364036 = 8832^2 + 9506^2 .

It is not an unprimeable number, because it can be changed into a prime (168368261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4209187 + ... + 4209226.

It is an arithmetic number, because the mean of its divisors is an integer number (29464449).

Almost surely, 2168368260 is an apocalyptic number.

168368260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168368260 is an abundant number, since it is smaller than the sum of its proper divisors (185205128).

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

168368260 is a wasteful number, since it uses less digits than its factorization.

168368260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418422 (or 8418420 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 168368260 is about 12975.6795583122. The cubic root of 168368260 is about 552.1877162101.

The spelling of 168368260 in words is "one hundred sixty-eight million, three hundred sixty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 8418413 16836826 33673652 42092065 84184130 168368260