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420501341 = 13172382727
BaseRepresentation
bin11001000100000…
…101011101011101
31002022020200101202
4121010011131131
51330122020331
6105420445245
713264126301
oct3104053535
91068220352
10420501341
111a63a8977
12b89a9825
136916bc80
143dbbdd01
1526db2ecb
hex1910575d

420501341 has 16 divisors (see below), whose sum is σ = 500338944. Its totient is φ = 349434624.

The previous prime is 420501317. The next prime is 420501349. The reversal of 420501341 is 143105024.

It is a cyclic number.

It is not a de Polignac number, because 420501341 - 210 = 420500317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420501349) 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, 36281 + ... + 46446.

It is an arithmetic number, because the mean of its divisors is an integer number (31271184).

Almost surely, 2420501341 is an apocalyptic number.

It is an amenable number.

420501341 is a deficient number, since it is larger than the sum of its proper divisors (79837603).

420501341 is a wasteful number, since it uses less digits than its factorization.

420501341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82780.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420501341 is about 20506.1293519767. The cubic root of 420501341 is about 749.1850947451.

Adding to 420501341 its reverse (143105024), we get a palindrome (563606365).

The spelling of 420501341 in words is "four hundred twenty million, five hundred one thousand, three hundred forty-one".

Divisors: 1 13 17 23 221 299 391 5083 82727 1075451 1406359 1902721 18282667 24735373 32346257 420501341