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30664212544 = 2672532592
BaseRepresentation
bin11100100011101110…
…101100000001000000
32221011001010101200201
4130203232230001000
51000300014300134
622030440254544
72133613335400
oct344356540100
987131111621
1030664212544
111200616a819
125b39471454
132b78b84184
1416ac748800
15be70cc914
hex723bac040

30664212544 has 189 divisors, whose sum is σ = 73388135037. Its totient is φ = 12675307008.

The previous prime is 30664212541. The next prime is 30664212547. The reversal of 30664212544 is 44521246603.

The square root of 30664212544 is 175112.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (30664212541) and next prime (30664212547).

It can be written as a sum of positive squares in only one way, i.e., 22105742400 + 8558470144 = 148680^2 + 92512^2 .

It is not an unprimeable number, because it can be changed into a prime (30664212541) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 519732387 + ... + 519732445.

Almost surely, 230664212544 is an apocalyptic number.

30664212544 is the 175112-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30664212544

30664212544 is an abundant number, since it is smaller than the sum of its proper divisors (42723922493).

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

30664212544 is an frugal number, since it uses more digits than its factorization.

30664212544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 30664212544 in words is "thirty billion, six hundred sixty-four million, two hundred twelve thousand, five hundred forty-four".