Search a number
-
+
120401444 = 2297310313
BaseRepresentation
bin1110010110100…
…10111000100100
322101120000201202
413023102320210
5221310321234
615540342032
72661252422
oct713227044
9271500652
10120401444
1161a66429
12343a4918
131bc37877
1411dc2112
15a88477e
hex72d2e24

120401444 has 12 divisors (see below), whose sum is σ = 212875404. Its totient is φ = 59579904.

The previous prime is 120401401. The next prime is 120401447. The reversal of 120401444 is 444104021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99241444 + 21160000 = 9962^2 + 4600^2 .

It is not an unprimeable number, because it can be changed into a prime (120401447) 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, 154769 + ... + 155544.

It is an arithmetic number, because the mean of its divisors is an integer number (17739617).

Almost surely, 2120401444 is an apocalyptic number.

It is an amenable number.

120401444 is a deficient number, since it is larger than the sum of its proper divisors (92473960).

120401444 is a wasteful number, since it uses less digits than its factorization.

120401444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310414 (or 310412 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120401444 is about 10972.7591789850. The cubic root of 120401444 is about 493.7918282355.

Adding to 120401444 its reverse (444104021), we get a palindrome (564505465).

The spelling of 120401444 in words is "one hundred twenty million, four hundred one thousand, four hundred forty-four".

Divisors: 1 2 4 97 194 388 310313 620626 1241252 30100361 60200722 120401444