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30534213 = 337275083
BaseRepresentation
bin111010001111…
…0101001000101
32010110022001210
41310132221011
530304043323
63010242033
7520352013
oct164365105
963408053
1030534213
1116265896
12a286319
1364311a8
1440ab8b3
152a32293
hex1d1ea45

30534213 has 8 divisors (see below), whose sum is σ = 41812768. Its totient is φ = 19805904.

The previous prime is 30534169. The next prime is 30534233. The reversal of 30534213 is 31243503.

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

It is not a de Polignac number, because 30534213 - 216 = 30468677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30534213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30534233) 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 7 ways as a sum of consecutive naturals, for example, 137431 + ... + 137652.

It is an arithmetic number, because the mean of its divisors is an integer number (5226596).

Almost surely, 230534213 is an apocalyptic number.

It is an amenable number.

30534213 is a deficient number, since it is larger than the sum of its proper divisors (11278555).

30534213 is a wasteful number, since it uses less digits than its factorization.

30534213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275123.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30534213 is about 5525.7771399143. Note that the first 3 decimals coincide. The cubic root of 30534213 is about 312.5567700596.

Adding to 30534213 its reverse (31243503), we get a palindrome (61777716).

The spelling of 30534213 in words is "thirty million, five hundred thirty-four thousand, two hundred thirteen".

Divisors: 1 3 37 111 275083 825249 10178071 30534213