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132221868 = 22337297797
BaseRepresentation
bin1111110000110…
…00101110101100
3100012210120022020
413320120232230
5232322044433
621041550140
73163603332
oct770305654
9305716266
10132221868
11686aa279
1238345350
1321515bbc
14137bbb52
15b91bcb3
hex7e18bac

132221868 has 24 divisors (see below), whose sum is σ = 316857072. Its totient is φ = 42882624.

The previous prime is 132221867. The next prime is 132221899. The reversal of 132221868 is 868122231.

It is not an unprimeable number, because it can be changed into a prime (132221863) 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, 148455 + ... + 149342.

It is an arithmetic number, because the mean of its divisors is an integer number (13202378).

Almost surely, 2132221868 is an apocalyptic number.

It is an amenable number.

132221868 is an abundant number, since it is smaller than the sum of its proper divisors (184635204).

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

132221868 is a wasteful number, since it uses less digits than its factorization.

132221868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297841 (or 297839 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 132221868 is about 11498.7768045127. The cubic root of 132221868 is about 509.4494481772.

The spelling of 132221868 in words is "one hundred thirty-two million, two hundred twenty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 297797 595594 893391 1191188 1786782 3573564 11018489 22036978 33055467 44073956 66110934 132221868