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30684467088 = 243311192911719
BaseRepresentation
bin11100100100111011…
…111100111110010000
32221012110020102201000
4130210323330332100
51000320210421323
622032442342000
72134250444502
oct344473747620
987173212630
1030684467088
1112016644310
125b441ba900
132b80126402
1416b12dbd72
15be8c7de43
hex724efcf90

30684467088 has 320 divisors, whose sum is σ = 104636160000. Its totient is φ = 8504455680.

The previous prime is 30684467087. The next prime is 30684467113. The reversal of 30684467088 is 88076448603.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (30684467083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2612493 + ... + 2624211.

It is an arithmetic number, because the mean of its divisors is an integer number (326988000).

Almost surely, 230684467088 is an apocalyptic number.

30684467088 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30684467088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52318080000).

30684467088 is an abundant number, since it is smaller than the sum of its proper divisors (73951692912).

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

30684467088 is a wasteful number, since it uses less digits than its factorization.

30684467088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11795 (or 11783 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 30684467088 in words is "thirty billion, six hundred eighty-four million, four hundred sixty-seven thousand, eighty-eight".