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128129253319 = 3492503146677
BaseRepresentation
bin111011101010100011…
…0010011111111000111
3110020201112210110121201
41313111012103333013
54044402042101234
6134510050323331
712154106453254
oct1672506237707
9406645713551
10128129253319
114a3806944a1
12209ba289547
13c10c444132
1462b6c5842b
1534ed9d3314
hex1dd5193fc7

128129253319 has 8 divisors (see below), whose sum is σ = 128548599200. Its totient is φ = 127710206496.

The previous prime is 128129253253. The next prime is 128129253331. The reversal of 128129253319 is 913352921821.

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 128129253319 - 227 = 127995035591 is a prime.

It is a super-2 number, since 2×1281292533192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128129253919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800209 + ... + 946885.

It is an arithmetic number, because the mean of its divisors is an integer number (16068574900).

Almost surely, 2128129253319 is an apocalyptic number.

128129253319 is a deficient number, since it is larger than the sum of its proper divisors (419345881).

128129253319 is a wasteful number, since it uses less digits than its factorization.

128129253319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149529.

The product of its digits is 233280, while the sum is 46.

The spelling of 128129253319 in words is "one hundred twenty-eight billion, one hundred twenty-nine million, two hundred fifty-three thousand, three hundred nineteen".

Divisors: 1 349 2503 146677 873547 51190273 367132531 128129253319