Search a number
-
+
330375389 = 1656119949
BaseRepresentation
bin10011101100010…
…010000011011101
3212000122210211112
4103230102003131
51134034003024
652441031405
711121100361
oct2354220335
9760583745
10330375389
1115a540a13
1292785565
13535a48c6
1431c3d2a1
151e00e00e
hex13b120dd

330375389 has 4 divisors (see below), whose sum is σ = 330411900. Its totient is φ = 330338880.

The previous prime is 330375377. The next prime is 330375421. The reversal of 330375389 is 983573033.

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, and also an emirpimes, since its reverse is a distinct semiprime: 983573033 = 2999327967.

It can be written as a sum of positive squares in 2 ways, for example, as 23600164 + 306775225 = 4858^2 + 17515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-330375389 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 (330372389) 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, 6587 + ... + 26535.

It is an arithmetic number, because the mean of its divisors is an integer number (82602975).

Almost surely, 2330375389 is an apocalyptic number.

It is an amenable number.

330375389 is a deficient number, since it is larger than the sum of its proper divisors (36511).

330375389 is a wasteful number, since it uses less digits than its factorization.

330375389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36510.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 330375389 is about 18176.2314300847. The cubic root of 330375389 is about 691.3042536936.

The spelling of 330375389 in words is "three hundred thirty million, three hundred seventy-five thousand, three hundred eighty-nine".

Divisors: 1 16561 19949 330375389