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120031303 = 719947953
BaseRepresentation
bin1110010011110…
…00100001000111
322100212012222211
413021320201013
5221212000203
615524404251
72655151330
oct711704107
9270765884
10120031303
1161833327
1234246687
131bb38252
1411d27287
15a80ec6d
hex7278847

120031303 has 16 divisors (see below), whose sum is σ = 144702720. Its totient is φ = 97263936.

The previous prime is 120031283. The next prime is 120031321. The reversal of 120031303 is 303130021.

It is a de Polignac number, because none of the positive numbers 2k-120031303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031403) 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 15 ways as a sum of consecutive naturals, for example, 125475 + ... + 126427.

It is an arithmetic number, because the mean of its divisors is an integer number (9043920).

Almost surely, 2120031303 is an apocalyptic number.

120031303 is a deficient number, since it is larger than the sum of its proper divisors (24671417).

120031303 is an equidigital number, since it uses as much as digits as its factorization.

120031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 120031303 is about 10955.8798368730. The cubic root of 120031303 is about 493.2852999354.

Adding to 120031303 its reverse (303130021), we get a palindrome (423161324).

The spelling of 120031303 in words is "one hundred twenty million, thirty-one thousand, three hundred three".

Divisors: 1 7 19 133 947 953 6629 6671 17993 18107 125951 126749 902491 6317437 17147329 120031303