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30068646 = 238635807
BaseRepresentation
bin111001010110…
…0111110100110
32002120122102120
41302230332212
530144144041
62552250410
7513402456
oct162547646
962518376
1030068646
1115a78023
12a0a0a06
1362ca2ca
143dc9d66
15298e366
hex1cacfa6

30068646 has 16 divisors (see below), whose sum is σ = 60217344. Its totient is φ = 10009544.

The previous prime is 30068641. The next prime is 30068671. The reversal of 30068646 is 64686003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068641) 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, 2275 + ... + 8081.

It is an arithmetic number, because the mean of its divisors is an integer number (3763584).

Almost surely, 230068646 is an apocalyptic number.

30068646 is an abundant number, since it is smaller than the sum of its proper divisors (30148698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30068646 is a wasteful number, since it uses less digits than its factorization.

30068646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 30068646 is about 5483.4884881798. The cubic root of 30068646 is about 310.9600690385.

The spelling of 30068646 in words is "thirty million, sixty-eight thousand, six hundred forty-six".

Divisors: 1 2 3 6 863 1726 2589 5178 5807 11614 17421 34842 5011441 10022882 15034323 30068646