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125430055 = 531380147
BaseRepresentation
bin1110111100111…
…10100100100111
322202000111200121
413132132210213
5224102230210
620240222411
73052065202
oct736364447
9282014617
10125430055
1164890503
123600aa07
131cca868a
1412930939
15b0296da
hex779e927

125430055 has 8 divisors (see below), whose sum is σ = 150998832. Its totient is φ = 100022208.

The previous prime is 125430049. The next prime is 125430059. The reversal of 125430055 is 550034521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125430055 - 29 = 125429543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125430059) 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 7 ways as a sum of consecutive naturals, for example, 38509 + ... + 41638.

It is an arithmetic number, because the mean of its divisors is an integer number (18874854).

Almost surely, 2125430055 is an apocalyptic number.

125430055 is a deficient number, since it is larger than the sum of its proper divisors (25568777).

125430055 is an equidigital number, since it uses as much as digits as its factorization.

125430055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80465.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 125430055 is about 11199.5560179857. The cubic root of 125430055 is about 500.5727503303.

Adding to 125430055 its reverse (550034521), we get a palindrome (675464576).

The spelling of 125430055 in words is "one hundred twenty-five million, four hundred thirty thousand, fifty-five".

Divisors: 1 5 313 1565 80147 400735 25086011 125430055