Search a number
-
+
120948791 is a prime number
BaseRepresentation
bin1110011010110…
…00100000110111
322102120211112212
413031120200313
5221430330131
620000204035
72666022245
oct715304067
9272524485
10120948791
11622aa687
123460961b
131c099a42
14120c5795
15a941a2b
hex7358837

120948791 has 2 divisors, whose sum is σ = 120948792. Its totient is φ = 120948790.

The previous prime is 120948769. The next prime is 120948799. The reversal of 120948791 is 197849021.

It is a strong prime.

It is an emirp because it is prime and its reverse (197849021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120948791 - 210 = 120947767 is a prime.

It is a super-2 number, since 2×1209487912 = 29257220088723362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120948799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60474395 + 60474396.

It is an arithmetic number, because the mean of its divisors is an integer number (60474396).

Almost surely, 2120948791 is an apocalyptic number.

120948791 is a deficient number, since it is larger than the sum of its proper divisors (1).

120948791 is an equidigital number, since it uses as much as digits as its factorization.

120948791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 120948791 is about 10997.6720718523. The cubic root of 120948791 is about 494.5389592198.

The spelling of 120948791 in words is "one hundred twenty million, nine hundred forty-eight thousand, seven hundred ninety-one".