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127117297 = 235526839
BaseRepresentation
bin1111001001110…
…10011111110001
322212012020011001
413210322133301
5230020223142
620340322001
73102323236
oct744723761
9285166131
10127117297
116583311a
12366a3301
1320449648
1412c4d78d
15b25e5b7
hex793a7f1

127117297 has 4 divisors (see below), whose sum is σ = 132644160. Its totient is φ = 121590436.

The previous prime is 127117273. The next prime is 127117303. The reversal of 127117297 is 792711721.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 792711721 = 2334465727.

It is a cyclic number.

It is not a de Polignac number, because 127117297 - 211 = 127115249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127117247) 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 in 3 ways as a sum of consecutive naturals, for example, 2763397 + ... + 2763442.

It is an arithmetic number, because the mean of its divisors is an integer number (33161040).

Almost surely, 2127117297 is an apocalyptic number.

It is an amenable number.

127117297 is a deficient number, since it is larger than the sum of its proper divisors (5526863).

127117297 is an equidigital number, since it uses as much as digits as its factorization.

127117297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526862.

The product of its digits is 12348, while the sum is 37.

The square root of 127117297 is about 11274.6306813128. The cubic root of 127117297 is about 502.8072716208.

The spelling of 127117297 in words is "one hundred twenty-seven million, one hundred seventeen thousand, two hundred ninety-seven".

Divisors: 1 23 5526839 127117297