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30805624080 = 24335711238053
BaseRepresentation
bin11100101100001010…
…001000010100010000
32221111220012211212000
4130230022020110100
51001042214432310
622052451234000
72140251325050
oct345412102420
987456184760
1030805624080
1112078a76360
125b788a8900
132b9c266b3a
1416c3439560
15c047124c0
hex72c288510

30805624080 has 640 divisors, whose sum is σ = 138059735040. Its totient is φ = 6122096640.

The previous prime is 30805624049. The next prime is 30805624097. The reversal of 30805624080 is 8042650803.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3821334 + ... + 3829386.

It is an arithmetic number, because the mean of its divisors is an integer number (215718336).

Almost surely, 230805624080 is an apocalyptic number.

30805624080 is a gapful number since it is divisible by the number (30) 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 30805624080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69029867520).

30805624080 is an abundant number, since it is smaller than the sum of its proper divisors (107254110960).

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

30805624080 is a wasteful number, since it uses less digits than its factorization.

30805624080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116 (or 8104 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 30805624080 in words is "thirty billion, eight hundred five million, six hundred twenty-four thousand, eighty".