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120240404 = 2244966949
BaseRepresentation
bin1110010101010…
…11100100010100
322101020211211022
413022223210110
5221240143104
615533100312
72660012054
oct712534424
9271224738
10120240404
1161966439
1234327698
131bbac48b
1411d7d564
15a851bbe
hex72ab914

120240404 has 12 divisors (see below), whose sum is σ = 210892500. Its totient is φ = 59985408.

The previous prime is 120240383. The next prime is 120240431. The reversal of 120240404 is 404042021.

It can be written as a sum of positive squares in 2 ways, for example, as 97219600 + 23020804 = 9860^2 + 4798^2 .

It is a congruent number.

It is an unprimeable number.

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, 31679 + ... + 35270.

It is an arithmetic number, because the mean of its divisors is an integer number (17574375).

Almost surely, 2120240404 is an apocalyptic number.

It is an amenable number.

120240404 is a deficient number, since it is larger than the sum of its proper divisors (90652096).

120240404 is a wasteful number, since it uses less digits than its factorization.

120240404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67402 (or 67400 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 120240404 is about 10965.4185510632. The cubic root of 120240404 is about 493.5715769572.

Adding to 120240404 its reverse (404042021), we get a palindrome (524282425).

The spelling of 120240404 in words is "one hundred twenty million, two hundred forty thousand, four hundred four".

Divisors: 1 2 4 449 898 1796 66949 133898 267796 30060101 60120202 120240404