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350542091 = 1720620123
BaseRepresentation
bin10100111001001…
…101100100001011
3220102121101100102
4110321031210023
51204214321331
654441200015
711454362414
oct2471154413
9812541312
10350542091
1116a965509
129949000b
1357815b73
14347ac80b
1520b944cb
hex14e4d90b

350542091 has 4 divisors (see below), whose sum is σ = 371162232. Its totient is φ = 329921952.

The previous prime is 350542067. The next prime is 350542097. The reversal of 350542091 is 190245053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190245053 = 643295871.

It is a cyclic number.

It is not a de Polignac number, because 350542091 - 218 = 350279947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350542097) 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, 10310045 + ... + 10310078.

It is an arithmetic number, because the mean of its divisors is an integer number (92790558).

Almost surely, 2350542091 is an apocalyptic number.

350542091 is a deficient number, since it is larger than the sum of its proper divisors (20620141).

350542091 is a wasteful number, since it uses less digits than its factorization.

350542091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20620140.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 350542091 is about 18722.7693197347. The cubic root of 350542091 is about 705.0935214532.

The spelling of 350542091 in words is "three hundred fifty million, five hundred forty-two thousand, ninety-one".

Divisors: 1 17 20620123 350542091