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127308713 = 722598137
BaseRepresentation
bin1111001011010…
…01001110101001
322212112221201112
413211221032221
5230042334323
620344400105
73104051300
oct745511651
9285487645
10127308713
1165953a14
1236776035
13204b57cc
1412c9d437
15b29b178
hex79693a9

127308713 has 6 divisors (see below), whose sum is σ = 148093866. Its totient is φ = 109121712.

The previous prime is 127308697. The next prime is 127308743. The reversal of 127308713 is 317803721.

It can be written as a sum of positive squares in only one way, i.e., 77915929 + 49392784 = 8827^2 + 7028^2 .

It is not a de Polignac number, because 127308713 - 24 = 127308697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127308713.

It is not an unprimeable number, because it can be changed into a prime (127308743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1299020 + ... + 1299117.

It is an arithmetic number, because the mean of its divisors is an integer number (24682311).

Almost surely, 2127308713 is an apocalyptic number.

It is an amenable number.

127308713 is a deficient number, since it is larger than the sum of its proper divisors (20785153).

127308713 is an equidigital number, since it uses as much as digits as its factorization.

127308713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598151 (or 2598144 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 127308713 is about 11283.1162805317. The cubic root of 127308713 is about 503.0595244348.

The spelling of 127308713 in words is "one hundred twenty-seven million, three hundred eight thousand, seven hundred thirteen".

Divisors: 1 7 49 2598137 18186959 127308713