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30066213 = 310022071
BaseRepresentation
bin111001010110…
…0011000100101
32002120112002110
41302230120211
530144104323
62552231233
7513362412
oct162543045
962515073
1030066213
1115a76211
12a09b519
1362c9178
143dc9109
15298d793
hex1cac625

30066213 has 4 divisors (see below), whose sum is σ = 40088288. Its totient is φ = 20044140.

The previous prime is 30066209. The next prime is 30066241. The reversal of 30066213 is 31266003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30066213 - 22 = 30066209 is a prime.

It is a super-2 number, since 2×300662132 = 1807954328322738, which contains 22 as substring.

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 30066213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30066293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011033 + ... + 5011038.

It is an arithmetic number, because the mean of its divisors is an integer number (10022072).

Almost surely, 230066213 is an apocalyptic number.

It is an amenable number.

30066213 is a deficient number, since it is larger than the sum of its proper divisors (10022075).

30066213 is a wasteful number, since it uses less digits than its factorization.

30066213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022074.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30066213 is about 5483.2666358659. The cubic root of 30066213 is about 310.9516817164.

The spelling of 30066213 in words is "thirty million, sixty-six thousand, two hundred thirteen".

Divisors: 1 3 10022071 30066213