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420030514405 = 5372419420893
BaseRepresentation
bin1100001110010111100…
…01010000010011100101
31111011011122111221010201
412013023301100103211
523340210302430110
6520543115350501
742226514315125
oct6071361202345
91434148457121
10420030514405
11152152303337
12694a3452431
13307bb43b128
141648854cc85
15add5190b3a
hex61cbc504e5

420030514405 has 16 divisors (see below), whose sum is σ = 519807247344. Its totient is φ = 325586027520.

The previous prime is 420030514373. The next prime is 420030514451. The reversal of 420030514405 is 504415030024.

It can be written as a sum of positive squares in 8 ways, for example, as 149842081 + 419880672324 = 12241^2 + 647982^2 .

It is not a de Polignac number, because 420030514405 - 25 = 420030514373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4665862 + ... + 4755031.

It is an arithmetic number, because the mean of its divisors is an integer number (32487952959).

Almost surely, 2420030514405 is an apocalyptic number.

It is an amenable number.

420030514405 is a deficient number, since it is larger than the sum of its proper divisors (99776732939).

420030514405 is a wasteful number, since it uses less digits than its factorization.

420030514405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9421176.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 420030514405 its reverse (504415030024), we get a palindrome (924445544429).

The spelling of 420030514405 in words is "four hundred twenty billion, thirty million, five hundred fourteen thousand, four hundred five".

Divisors: 1 5 37 185 241 1205 8917 44585 9420893 47104465 348573041 1742865205 2270435213 11352176065 84006102881 420030514405