Search a number
-
+
120493817 is a prime number
BaseRepresentation
bin1110010111010…
…01011011111001
322101201201102222
413023221123321
5221321300232
615542333425
72662115633
oct713513371
9271651388
10120493817
1162019874
123442a275
131bc6a922
1412007a53
15a8a1d12
hex72e96f9

120493817 has 2 divisors, whose sum is σ = 120493818. Its totient is φ = 120493816.

The previous prime is 120493799. The next prime is 120493819. The reversal of 120493817 is 718394021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87534736 + 32959081 = 9356^2 + 5741^2 .

It is a cyclic number.

It is not a de Polignac number, because 120493817 - 214 = 120477433 is a prime.

Together with 120493819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120493819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60246908 + 60246909.

It is an arithmetic number, because the mean of its divisors is an integer number (60246909).

Almost surely, 2120493817 is an apocalyptic number.

It is an amenable number.

120493817 is a deficient number, since it is larger than the sum of its proper divisors (1).

120493817 is an equidigital number, since it uses as much as digits as its factorization.

120493817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 120493817 is about 10976.9675685045. The cubic root of 120493817 is about 493.9180763687.

The spelling of 120493817 in words is "one hundred twenty million, four hundred ninety-three thousand, eight hundred seventeen".