Search a number
-
+
30430022 = 272173573
BaseRepresentation
bin111010000010…
…1001101000110
32010021000010212
41310011031012
530242230042
63004115422
7516436160
oct164051506
963230125
1030430022
11161a4587
12a235b72
1363c593c
144081930
152a11482
hex1d05346

30430022 has 8 divisors (see below), whose sum is σ = 52165776. Its totient is φ = 13041432.

The previous prime is 30430013. The next prime is 30430027. The reversal of 30430022 is 22003403.

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

It is a super-3 number, since 3×304300223 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 2173573 = 30430022 / (3 + 0 + 4 + 3 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30429979 and 30430006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30430027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086773 + ... + 1086800.

It is an arithmetic number, because the mean of its divisors is an integer number (6520722).

Almost surely, 230430022 is an apocalyptic number.

30430022 is a deficient number, since it is larger than the sum of its proper divisors (21735754).

30430022 is a wasteful number, since it uses less digits than its factorization.

30430022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173582.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30430022 is about 5516.3413599958. The cubic root of 30430022 is about 312.2008554916.

Adding to 30430022 its reverse (22003403), we get a palindrome (52433425).

It can be divided in two parts, 30 and 430022, that multiplied together give a triangular number (12900660 = T5079).

The spelling of 30430022 in words is "thirty million, four hundred thirty thousand, twenty-two".

Divisors: 1 2 7 14 2173573 4347146 15215011 30430022