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120243412 = 2230060853
BaseRepresentation
bin1110010101011…
…00010011010100
322101020222221201
413022230103110
5221240242122
615533122244
72660023612
oct712542324
9271228851
10120243412
1161968723
1234329384
131bbb0963
1411d806b2
15a852a27
hex72ac4d4

120243412 has 6 divisors (see below), whose sum is σ = 210425978. Its totient is φ = 60121704.

The previous prime is 120243407. The next prime is 120243427. The reversal of 120243412 is 214342021.

It can be written as a sum of positive squares in only one way, i.e., 75272976 + 44970436 = 8676^2 + 6706^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120243412.

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 as a sum of consecutive naturals, namely, 15030423 + ... + 15030430.

Almost surely, 2120243412 is an apocalyptic number.

It is an amenable number.

120243412 is a deficient number, since it is larger than the sum of its proper divisors (90182566).

120243412 is a wasteful number, since it uses less digits than its factorization.

120243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30060857 (or 30060855 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120243412 is about 10965.5557086725. Note that the first 3 decimals coincide. The cubic root of 120243412 is about 493.5756927422.

Adding to 120243412 its reverse (214342021), we get a palindrome (334585433).

The spelling of 120243412 in words is "one hundred twenty million, two hundred forty-three thousand, four hundred twelve".

Divisors: 1 2 4 30060853 60121706 120243412