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3128300000173 = 17732125135589
BaseRepresentation
bin101101100001011101001…
…101011101001110101101
3102002001200121100120201101
4231201131031131032231
5402223224300001143
610353042101443101
7442004122156525
oct55413515351655
912061617316641
103128300000173
11aa6782882877
12426351410491
13198cc745827a
14ab5a66ba685
1556593203b4d
hex2d85d35d3ad

3128300000173 has 8 divisors (see below), whose sum is σ = 3312770219640. Its totient is φ = 2943880066560.

The previous prime is 3128300000129. The next prime is 3128300000179. The reversal of 3128300000173 is 3710000038213.

It can be written as a sum of positive squares in 4 ways, for example, as 218965971844 + 2909334028329 = 467938^2 + 1705677^2 .

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

It is not a de Polignac number, because 3128300000173 - 233 = 3119710065581 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 (3128300000179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12443338 + ... + 12692251.

It is an arithmetic number, because the mean of its divisors is an integer number (414096277455).

Almost surely, 23128300000173 is an apocalyptic number.

It is an amenable number.

3128300000173 is a deficient number, since it is larger than the sum of its proper divisors (184470219467).

3128300000173 is a wasteful number, since it uses less digits than its factorization.

3128300000173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25142927.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 3128300000173 its reverse (3710000038213), we get a palindrome (6838300038386).

The spelling of 3128300000173 in words is "three trillion, one hundred twenty-eight billion, three hundred million, one hundred seventy-three", and thus it is an aban number.

Divisors: 1 17 7321 124457 25135589 427305013 184017647069 3128300000173