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30522130 = 253052213
BaseRepresentation
bin111010001101…
…1101100010010
32010102200111021
41310123230102
530303202010
63010110054
7520301542
oct164335422
963380437
1030522130
1116257801
12a27b32a
136428842
1440a7322
152a2d8da
hex1d1bb12

30522130 has 8 divisors (see below), whose sum is σ = 54939852. Its totient is φ = 12208848.

The previous prime is 30522109. The next prime is 30522133. The reversal of 30522130 is 3122503.

It can be written as a sum of positive squares in 2 ways, for example, as 30283009 + 239121 = 5503^2 + 489^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30522133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526097 + ... + 1526116.

Almost surely, 230522130 is an apocalyptic number.

30522130 is a deficient number, since it is larger than the sum of its proper divisors (24417722).

30522130 is a wasteful number, since it uses less digits than its factorization.

30522130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052220.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30522130 is about 5524.6837013534. The cubic root of 30522130 is about 312.5155362942.

Adding to 30522130 its reverse (3122503), we get a palindrome (33644633).

The spelling of 30522130 in words is "thirty million, five hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 3052213 6104426 15261065 30522130