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30822630 = 2351027421
BaseRepresentation
bin111010110010…
…1000011100110
32010222221200220
41311211003212
530342311010
63020345210
7522662616
oct165450346
963887626
1030822630
1116442553
12a3a5206
136502557
144144a46
152a8c970
hex1d650e6

30822630 has 16 divisors (see below), whose sum is σ = 73974384. Its totient is φ = 8219360.

The previous prime is 30822607. The next prime is 30822637. The reversal of 30822630 is 3622803.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30822630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30822637) 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, 513681 + ... + 513740.

It is an arithmetic number, because the mean of its divisors is an integer number (4623399).

Almost surely, 230822630 is an apocalyptic number.

30822630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30822630 is an abundant number, since it is smaller than the sum of its proper divisors (43151754).

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

30822630 is a wasteful number, since it uses less digits than its factorization.

30822630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027431.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30822630 is about 5551.8132173192. The cubic root of 30822630 is about 313.5377934693.

The spelling of 30822630 in words is "thirty million, eight hundred twenty-two thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1027421 2054842 3082263 5137105 6164526 10274210 15411315 30822630