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30061191168 = 213322811451
BaseRepresentation
bin11011111111110010…
…010110000000000000
32212121000102201212200
4123333302112000000
5443031131104133
621450535353200
72112641623521
oct337762260000
985530381780
1030061191168
1111826838948
1259ab522800
132ab0c6b2a8
141652616848
15bae1b4913
hex6ffc96000

30061191168 has 168 divisors, whose sum is σ = 87207233256. Its totient is φ = 9977856000.

The previous prime is 30061191119. The next prime is 30061191169. The reversal of 30061191168 is 86119116003.

It is a happy number.

30061191168 is a `hidden beast` number, since 30 + 0 + 611 + 9 + 1 + 1 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30061191169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20716843 + ... + 20718293.

Almost surely, 230061191168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30061191168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43603616628).

30061191168 is an abundant number, since it is smaller than the sum of its proper divisors (57146042088).

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

30061191168 is a wasteful number, since it uses less digits than its factorization.

30061191168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 30061191168 in words is "thirty billion, sixty-one million, one hundred ninety-one thousand, one hundred sixty-eight".