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125128675055 = 561677186243
BaseRepresentation
bin111010010001001000…
…0000000111011101111
3102221222102200022001102
41310202100000323233
54022230420100210
6133252221433315
712016543121546
oct1644220007357
9387872608042
10125128675055
114908096964a
122030140b83b
13ba518b9637
1460b054115d
1533c5377ea5
hex1d22400eef

125128675055 has 32 divisors (see below), whose sum is σ = 157077232128. Its totient is φ = 95625129600.

The previous prime is 125128675031. The next prime is 125128675093. The reversal of 125128675055 is 550576821521.

It is not a de Polignac number, because 125128675055 - 210 = 125128674031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1407764 + ... + 1494006.

It is an arithmetic number, because the mean of its divisors is an integer number (4908663504).

Almost surely, 2125128675055 is an apocalyptic number.

125128675055 is a deficient number, since it is larger than the sum of its proper divisors (31948557073).

125128675055 is an equidigital number, since it uses as much as digits as its factorization.

125128675055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86447.

The product of its (nonzero) digits is 840000, while the sum is 47.

The spelling of 125128675055 in words is "one hundred twenty-five billion, one hundred twenty-eight million, six hundred seventy-five thousand, fifty-five".

Divisors: 1 5 61 67 71 305 335 355 4087 4331 4757 20435 21655 23785 86243 290177 431215 1450885 5260823 5778281 6123253 26304115 28891405 30616265 352475141 373518433 410257951 1762375705 1867592165 2051289755 25025735011 125128675055