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420343133 = 7337178187
BaseRepresentation
bin11001000011011…
…110110101011101
31002021221122101012
4121003132311131
51330101440013
6105413225005
713262600120
oct3103366535
91067848335
10420343133
111a6300021
12b8932165
1369114c62
143db7c3b7
1526d811a8
hex190ded5d

420343133 has 8 divisors (see below), whose sum is σ = 481820352. Its totient is φ = 359222976.

The previous prime is 420343127. The next prime is 420343141. The reversal of 420343133 is 331343024.

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

It is not a de Polignac number, because 420343133 - 214 = 420326749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420343099 and 420343108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420343933) 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 7 ways as a sum of consecutive naturals, for example, 86735 + ... + 91452.

It is an arithmetic number, because the mean of its divisors is an integer number (60227544).

Almost surely, 2420343133 is an apocalyptic number.

It is an amenable number.

420343133 is a deficient number, since it is larger than the sum of its proper divisors (61477219).

420343133 is a wasteful number, since it uses less digits than its factorization.

420343133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178531.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 420343133 is about 20502.2714107486. The cubic root of 420343133 is about 749.0911260053.

Adding to 420343133 its reverse (331343024), we get a palindrome (751686157).

The spelling of 420343133 in words is "four hundred twenty million, three hundred forty-three thousand, one hundred thirty-three".

Divisors: 1 7 337 2359 178187 1247309 60049019 420343133