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127330393 = 257495449
BaseRepresentation
bin1111001011011…
…10100001011001
322212121001110111
413211232201121
5230044033033
620345044321
73104201431
oct745564131
9285531414
10127330393
1165969233
12367866a1
13204c2638
1412ca72c1
15b2a27cd
hex796e859

127330393 has 4 divisors (see below), whose sum is σ = 127826100. Its totient is φ = 126834688.

The previous prime is 127330367. The next prime is 127330409. The reversal of 127330393 is 393033721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393033721 = 3710622533.

It can be written as a sum of positive squares in 2 ways, for example, as 98942809 + 28387584 = 9947^2 + 5328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-127330393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127334393) 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, 247468 + ... + 247981.

It is an arithmetic number, because the mean of its divisors is an integer number (31956525).

Almost surely, 2127330393 is an apocalyptic number.

It is an amenable number.

127330393 is a deficient number, since it is larger than the sum of its proper divisors (495707).

127330393 is an equidigital number, since it uses as much as digits as its factorization.

127330393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495706.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 127330393 is about 11284.0769671250. The cubic root of 127330393 is about 503.0880789388.

The spelling of 127330393 in words is "one hundred twenty-seven million, three hundred thirty thousand, three hundred ninety-three".

Divisors: 1 257 495449 127330393