Base | Representation |
---|---|
bin | 11100011011110000… |
… | …100010001111000000 |
3 | 2220210201111000210222 |
4 | 130123300202033000 |
5 | 1000011300312130 |
6 | 22005302042212 |
7 | 2130400534655 |
oct | 343360421700 |
9 | 86721430728 |
10 | 30530479040 |
11 | 11a47728866 |
12 | 5b00719368 |
13 | 2b5725c219 |
14 | 1698a95c2c |
15 | bda4b2ce5 |
hex | 71bc223c0 |
30530479040 has 112 divisors (see below), whose sum is σ = 74018119680. Its totient is φ = 11992581120.
The previous prime is 30530479039. The next prime is 30530479069. The reversal of 30530479040 is 4097403503.
It is a super-2 number, since 2×305304790402 (a number of 22 digits) contains 22 as substring.
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, 4825319 + ... + 4831641.
Almost surely, 230530479040 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 30530479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37009059840).
30530479040 is an abundant number, since it is smaller than the sum of its proper divisors (43487640640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30530479040 is a wasteful number, since it uses less digits than its factorization.
30530479040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6610 (or 6600 counting only the distinct ones).
The product of its (nonzero) digits is 45360, while the sum is 35.
The spelling of 30530479040 in words is "thirty billion, five hundred thirty million, four hundred seventy-nine thousand, forty".
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