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431340201 = 3317939739
BaseRepresentation
bin11001101101011…
…011101010101001
31010001122100112000
4121231123222221
51340410341301
6110445041213
713455221415
oct3155335251
91101570460
10431340201
11201531306
12100556209
136b4955b6
1441401d45
1527d04786
hex19b5baa9

431340201 has 16 divisors (see below), whose sum is σ = 676612800. Its totient is φ = 270644544.

The previous prime is 431340199. The next prime is 431340233. The reversal of 431340201 is 102043134.

431340201 is a `hidden beast` number, since 431 + 34 + 0 + 201 = 666.

It is not a de Polignac number, because 431340201 - 21 = 431340199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431340271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469411 + ... + 470328.

It is an arithmetic number, because the mean of its divisors is an integer number (42288300).

Almost surely, 2431340201 is an apocalyptic number.

It is an amenable number.

431340201 is a deficient number, since it is larger than the sum of its proper divisors (245272599).

431340201 is a wasteful number, since it uses less digits than its factorization.

431340201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939765 (or 939759 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431340201 is about 20768.7313286103. The cubic root of 431340201 is about 755.5675752037.

Adding to 431340201 its reverse (102043134), we get a palindrome (533383335).

The spelling of 431340201 in words is "four hundred thirty-one million, three hundred forty thousand, two hundred one".

Divisors: 1 3 9 17 27 51 153 459 939739 2819217 8457651 15975563 25372953 47926689 143780067 431340201