Base | Representation |
---|---|
bin | 1101101011100110011101… |
… | …10111101101000000000000 |
3 | 10221112010201202121011222222 |
4 | 12311303032313231000000 |
5 | 12420404420420244140 |
6 | 143553015113350212 |
7 | 6223412536420310 |
oct | 665631667550000 |
9 | 127463652534888 |
10 | 30085421649920 |
11 | 964a179217a4a |
12 | 345a90aa08368 |
13 | 13a3073884630 |
14 | 7601dc1c5440 |
15 | 3728ce23c5b5 |
hex | 1b5cceded000 |
30085421649920 has 208 divisors, whose sum is σ = 88856864423040. Its totient is φ = 9521539448832.
The previous prime is 30085421649911. The next prime is 30085421649977. The reversal of 30085421649920 is 2994612458003.
It is a tau number, because it is divible by the number of its divisors (208).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6207830 + ... + 9935189.
Almost surely, 230085421649920 is an apocalyptic number.
It is an amenable number.
30085421649920 is an abundant number, since it is smaller than the sum of its proper divisors (58771442773120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30085421649920 is a wasteful number, since it uses less digits than its factorization.
30085421649920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16143068 (or 16143046 counting only the distinct ones).
The product of its (nonzero) digits is 3732480, while the sum is 53.
The spelling of 30085421649920 in words is "thirty trillion, eighty-five billion, four hundred twenty-one million, six hundred forty-nine thousand, nine hundred twenty".
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