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30528099648 = 2632313075569
BaseRepresentation
bin11100011011100111…
…011101010101000000
32220210120000010220100
4130123213131111000
51000010143142043
622005135042400
72130341364654
oct343347352500
986716003810
1030528099648
1111a46353122
125abb970400
132b569081b7
141698636a64
15bda192cd3
hex71b9dd540

30528099648 has 168 divisors, whose sum is σ = 90636465920. Its totient is φ = 9813934080.

The previous prime is 30528099647. The next prime is 30528099661. The reversal of 30528099648 is 84699082503.

It is a junction number, because it is equal to n+sod(n) for n = 30528099594 and 30528099603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30528099647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5479008 + ... + 5484576.

Almost surely, 230528099648 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 30528099648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45318232960).

30528099648 is an abundant number, since it is smaller than the sum of its proper divisors (60108366272).

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

30528099648 is a wasteful number, since it uses less digits than its factorization.

30528099648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 30528099648 in words is "thirty billion, five hundred twenty-eight million, ninety-nine thousand, six hundred forty-eight".