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133124330 = 2513312433
BaseRepresentation
bin1111110111101…
…01000011101010
3100021111102020202
413323311003222
5233034434310
621113152202
73204352403
oct773650352
9307442222
10133124330
1169166309
12386bb662
13217708c1
14139749aa
15ba493a5
hex7ef50ea

133124330 has 8 divisors (see below), whose sum is σ = 239623812. Its totient is φ = 53249728.

The previous prime is 133124311. The next prime is 133124347. The reversal of 133124330 is 33421331.

It can be written as a sum of positive squares in 2 ways, for example, as 125731369 + 7392961 = 11213^2 + 2719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6656207 + ... + 6656226.

Almost surely, 2133124330 is an apocalyptic number.

133124330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133124330 is a deficient number, since it is larger than the sum of its proper divisors (106499482).

133124330 is a wasteful number, since it uses less digits than its factorization.

133124330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13312440.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133124330 is about 11537.9517246347. The cubic root of 133124330 is about 510.6058799553.

Adding to 133124330 its reverse (33421331), we get a palindrome (166545661).

The spelling of 133124330 in words is "one hundred thirty-three million, one hundred twenty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 13312433 26624866 66562165 133124330