Search a number
-
+
30836593 = 149349593
BaseRepresentation
bin111010110100…
…0011101110001
32011000122212001
41311220131301
530343232333
63020534001
7523051414
oct165503561
964018761
1030836593
1116451a97
12a3b1301
136508a08
144149b7b
152a91b7d
hex1d68771

30836593 has 8 divisors (see below), whose sum is σ = 31185000. Its totient is φ = 30490368.

The previous prime is 30836581. The next prime is 30836609. The reversal of 30836593 is 39563803.

It can be written as a sum of positive squares in 4 ways, for example, as 3713329 + 27123264 = 1927^2 + 5208^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30836593 - 213 = 30828401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30836543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51705 + ... + 52297.

It is an arithmetic number, because the mean of its divisors is an integer number (3898125).

Almost surely, 230836593 is an apocalyptic number.

It is an amenable number.

30836593 is a deficient number, since it is larger than the sum of its proper divisors (348407).

30836593 is a wasteful number, since it uses less digits than its factorization.

30836593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 30836593 is about 5553.0705920238. The cubic root of 30836593 is about 313.5851317106.

The spelling of 30836593 in words is "thirty million, eight hundred thirty-six thousand, five hundred ninety-three".

Divisors: 1 149 349 593 52001 88357 206957 30836593