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133320140 = 22518733559
BaseRepresentation
bin1111111001001…
…00110111001100
3100021212100211222
413330210313030
5233112221030
621121302512
73206126312
oct774446714
9307770758
10133320140
116928a438
1238794a38
132180ba75
14139c60b2
15ba873e5
hex7f24dcc

133320140 has 24 divisors (see below), whose sum is σ = 280200480. Its totient is φ = 53284608.

The previous prime is 133320127. The next prime is 133320211. The reversal of 133320140 is 41023331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35681 + ... + 39239.

It is an arithmetic number, because the mean of its divisors is an integer number (11675020).

Almost surely, 2133320140 is an apocalyptic number.

133320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133320140 is an abundant number, since it is smaller than the sum of its proper divisors (146880340).

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

133320140 is a wasteful number, since it uses less digits than its factorization.

133320140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441 (or 5439 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133320140 is about 11546.4340815682. The cubic root of 133320140 is about 510.8561040803.

Adding to 133320140 its reverse (41023331), we get a palindrome (174343471).

The spelling of 133320140 in words is "one hundred thirty-three million, three hundred twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1873 3559 3746 7118 7492 9365 14236 17795 18730 35590 37460 71180 6666007 13332014 26664028 33330035 66660070 133320140