Search a number
-
+
120117397 is a prime number
BaseRepresentation
bin1110010100011…
…01100010010101
322101000121002111
413022031202111
5221222224042
615530311021
72655660331
oct712154225
9271017074
10120117397
1161891a84
1234288471
131bb684aa
1411d4a7c1
15a82a517
hex728d895

120117397 has 2 divisors, whose sum is σ = 120117398. Its totient is φ = 120117396.

The previous prime is 120117341. The next prime is 120117407. The reversal of 120117397 is 793711021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119115396 + 1002001 = 10914^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 120117397 - 27 = 120117269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120117317) 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 as a sum of consecutive naturals, namely, 60058698 + 60058699.

It is an arithmetic number, because the mean of its divisors is an integer number (60058699).

Almost surely, 2120117397 is an apocalyptic number.

It is an amenable number.

120117397 is a deficient number, since it is larger than the sum of its proper divisors (1).

120117397 is an equidigital number, since it uses as much as digits as its factorization.

120117397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 120117397 is about 10959.8082556220. The cubic root of 120117397 is about 493.4032101633.

The spelling of 120117397 in words is "one hundred twenty million, one hundred seventeen thousand, three hundred ninety-seven".