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120132444 = 22310011037
BaseRepresentation
bin1110010100100…
…01001101011100
322101001100201210
413022101031130
5221223214234
615530504420
72656052235
oct712211534
9271040653
10120132444
11618a2313
1234295110
131bb722b3
1411d5208c
15a82ebe9
hex729135c

120132444 has 12 divisors (see below), whose sum is σ = 280309064. Its totient is φ = 40044144.

The previous prime is 120132443. The next prime is 120132461. The reversal of 120132444 is 444231021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 120132444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120132443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005507 + ... + 5005530.

Almost surely, 2120132444 is an apocalyptic number.

It is an amenable number.

120132444 is an abundant number, since it is smaller than the sum of its proper divisors (160176620).

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

120132444 is a wasteful number, since it uses less digits than its factorization.

120132444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011044 (or 10011042 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 120132444 is about 10960.4946968647. The cubic root of 120132444 is about 493.4238120309.

Adding to 120132444 its reverse (444231021), we get a palindrome (564363465).

The spelling of 120132444 in words is "one hundred twenty million, one hundred thirty-two thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 10011037 20022074 30033111 40044148 60066222 120132444