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350541421 = 1168929989
BaseRepresentation
bin10100111001001…
…101011001101101
3220102121100102121
4110321031121231
51204214311141
654441152541
711454360436
oct2471153155
9812540377
10350541421
1116a964a5a
129948b751
1357815779
14347ac48d
1520b941d1
hex14e4d66d

350541421 has 4 divisors (see below), whose sum is σ = 350583100. Its totient is φ = 350499744.

The previous prime is 350541419. The next prime is 350541427. The reversal of 350541421 is 124145053.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 331058025 + 19483396 = 18195^2 + 4414^2 .

It is a cyclic number.

It is not a de Polignac number, because 350541421 - 21 = 350541419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350541427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306 + ... + 26683.

It is an arithmetic number, because the mean of its divisors is an integer number (87645775).

Almost surely, 2350541421 is an apocalyptic number.

It is an amenable number.

350541421 is a deficient number, since it is larger than the sum of its proper divisors (41679).

350541421 is a wasteful number, since it uses less digits than its factorization.

350541421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41678.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 350541421 is about 18722.7514270740. The cubic root of 350541421 is about 705.0930722319.

Adding to 350541421 its reverse (124145053), we get a palindrome (474686474).

The spelling of 350541421 in words is "three hundred fifty million, five hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 11689 29989 350541421