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42312130205 = 5232411526687
BaseRepresentation
bin100111011001111111…
…111101111010011101
311001012210201220212112
4213121333331322131
51143123401131310
631234331443405
73025351113122
oct473177757235
9131183656775
1042312130205
1116a43104754
12824a2b6565
133cb40b3a47
1420956b6749
1511799a2705
hex9d9ffde9d

42312130205 has 16 divisors (see below), whose sum is σ = 53202023424. Its totient is φ = 32243608320.

The previous prime is 42312130193. The next prime is 42312130207. The reversal of 42312130205 is 50203121324.

It is not a de Polignac number, because 42312130205 - 26 = 42312130141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312130207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735629 + ... + 791058.

It is an arithmetic number, because the mean of its divisors is an integer number (3325126464).

Almost surely, 242312130205 is an apocalyptic number.

It is an amenable number.

42312130205 is a deficient number, since it is larger than the sum of its proper divisors (10889893219).

42312130205 is a wasteful number, since it uses less digits than its factorization.

42312130205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526956.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 42312130205 its reverse (50203121324), we get a palindrome (92515251529).

The spelling of 42312130205 in words is "forty-two billion, three hundred twelve million, one hundred thirty thousand, two hundred five".

Divisors: 1 5 23 115 241 1205 5543 27715 1526687 7633435 35113801 175569005 367931567 1839657835 8462426041 42312130205