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350072431 = 1825119181
BaseRepresentation
bin10100110111011…
…010111001101111
3220101201112002121
4110313122321233
51204104304211
654423133411
711450365222
oct2467327157
9811645077
10350072431
1116a674665
12992a4267
13576b0167
14346c95b9
1520b00271
hex14ddae6f

350072431 has 4 divisors (see below), whose sum is σ = 350109864. Its totient is φ = 350035000.

The previous prime is 350072419. The next prime is 350072441. The reversal of 350072431 is 134270053.

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 is a cyclic number.

It is not a de Polignac number, because 350072431 - 215 = 350039663 is a prime.

It is a super-2 number, since 2×3500724312 = 245101413892499522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 350072396 and 350072405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350072441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8661 + ... + 27841.

It is an arithmetic number, because the mean of its divisors is an integer number (87527466).

Almost surely, 2350072431 is an apocalyptic number.

350072431 is a deficient number, since it is larger than the sum of its proper divisors (37433).

350072431 is a wasteful number, since it uses less digits than its factorization.

350072431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37432.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 350072431 is about 18710.2226336300. Note that the first 3 decimals coincide. The cubic root of 350072431 is about 704.7784834624.

The spelling of 350072431 in words is "three hundred fifty million, seventy-two thousand, four hundred thirty-one".

Divisors: 1 18251 19181 350072431