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420000353 = 2111990523
BaseRepresentation
bin11001000010001…
…011001001100001
31002021022020011122
4121002023021201
51330010002403
6105402022025
713256641553
oct3102131141
91067266148
10420000353
111a6096533
12b87a7915
1369024c26
143dacd4d3
1526d14838
hex1908b261

420000353 has 4 divisors (see below), whose sum is σ = 421991088. Its totient is φ = 418009620.

The previous prime is 420000349. The next prime is 420000389. The reversal of 420000353 is 353000024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420000353 - 22 = 420000349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420000323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995051 + ... + 995472.

It is an arithmetic number, because the mean of its divisors is an integer number (105497772).

Almost surely, 2420000353 is an apocalyptic number.

It is an amenable number.

420000353 is a deficient number, since it is larger than the sum of its proper divisors (1990735).

420000353 is a wasteful number, since it uses less digits than its factorization.

420000353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990734.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 420000353 is about 20493.9101442355. The cubic root of 420000353 is about 748.8874485291.

Adding to 420000353 its reverse (353000024), we get a palindrome (773000377).

The spelling of 420000353 in words is "four hundred twenty million, three hundred fifty-three", and thus it is an aban number.

Divisors: 1 211 1990523 420000353