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30101500000 = 25561113421
BaseRepresentation
bin11100000010001100…
…000111000001100000
32212200211021122012101
4130002030013001200
5443121441000000
621454535340144
72113641346135
oct340214070140
985624248171
1030101500000
111184756a530
125a00b21654
132ab9412580
141657b0a58c
15bb29c7e6a
hex702307060

30101500000 has 336 divisors, whose sum is σ = 87234195888. Its totient is φ = 10080000000.

The previous prime is 30101499991. The next prime is 30101500021. The reversal of 30101500000 is 510103.

It is a super-2 number, since 2×301015000002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 30101500000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 71499790 + ... + 71500210.

It is an arithmetic number, because the mean of its divisors is an integer number (259625583).

Almost surely, 230101500000 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 30101500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43617097944).

30101500000 is an abundant number, since it is smaller than the sum of its proper divisors (57132695888).

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

30101500000 is an equidigital number, since it uses as much as digits as its factorization.

30101500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 10.

The spelling of 30101500000 in words is "thirty billion, one hundred one million, five hundred thousand".