[go: up one dir, main page]

Search a number
-
+
30135233 = 181331503
BaseRepresentation
bin111001011110…
…1001111000001
32002201000202202
41302331033001
530203311413
62553522545
7514100552
oct162751701
962630682
1030135233
1116013057
12a113455
1363216cb
144006329
1529a3e58
hex1cbd3c1

30135233 has 8 divisors (see below), whose sum is σ = 30453696. Its totient is φ = 29818800.

The previous prime is 30135229. The next prime is 30135251. The reversal of 30135233 is 33253103.

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 30135233 - 22 = 30135229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30135293) 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, 59660 + ... + 60162.

It is an arithmetic number, because the mean of its divisors is an integer number (3806712).

Almost surely, 230135233 is an apocalyptic number.

It is an amenable number.

30135233 is a deficient number, since it is larger than the sum of its proper divisors (318463).

30135233 is a wasteful number, since it uses less digits than its factorization.

30135233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 30135233 is about 5489.5567216306. The cubic root of 30135233 is about 311.1894401082.

Adding to 30135233 its reverse (33253103), we get a palindrome (63388336).

The spelling of 30135233 in words is "thirty million, one hundred thirty-five thousand, two hundred thirty-three".

Divisors: 1 181 331 503 59911 91043 166493 30135233