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127116489 = 342372163
BaseRepresentation
bin1111001001110…
…10010011001001
322212012012001010
413210322103021
5230020211424
620340314133
73102321003
oct744722311
9285165033
10127116489
1165832555
12366a2949
1320449176
1412c4d373
15b25e229
hex793a4c9

127116489 has 4 divisors (see below), whose sum is σ = 169488656. Its totient is φ = 84744324.

The previous prime is 127116449. The next prime is 127116491. The reversal of 127116489 is 984611721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 127116489 - 28 = 127116233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127116439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21186079 + ... + 21186084.

It is an arithmetic number, because the mean of its divisors is an integer number (42372164).

Almost surely, 2127116489 is an apocalyptic number.

It is an amenable number.

127116489 is a deficient number, since it is larger than the sum of its proper divisors (42372167).

127116489 is an equidigital number, since it uses as much as digits as its factorization.

127116489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42372166.

The product of its digits is 24192, while the sum is 39.

The square root of 127116489 is about 11274.5948485966. The cubic root of 127116489 is about 502.8062062816.

The spelling of 127116489 in words is "one hundred twenty-seven million, one hundred sixteen thousand, four hundred eighty-nine".

Divisors: 1 3 42372163 127116489