Base | Representation |
---|---|
bin | 11011111110000010… |
… | …010011000111000000 |
3 | 2212111222011111010000 |
4 | 123332002103013000 |
5 | 443001121203300 |
6 | 21444010040000 |
7 | 2112134152125 |
oct | 337602230700 |
9 | 85458144100 |
10 | 30031819200 |
11 | 118111a7299 |
12 | 59a1719000 |
13 | 2aa7b56126 |
14 | 164c76c74c |
15 | bab811c00 |
hex | 6fe0931c0 |
30031819200 has 840 divisors, whose sum is σ = 119978405712. Its totient is φ = 7338885120.
The previous prime is 30031819177. The next prime is 30031819241. The reversal of 30031819200 is 291813003.
It is a super-2 number, since 2×300318192002 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 94737442 + ... + 94737758.
Almost surely, 230031819200 is an apocalyptic number.
30031819200 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 30031819200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59989202856).
30031819200 is an abundant number, since it is smaller than the sum of its proper divisors (89946586512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30031819200 is a wasteful number, since it uses less digits than its factorization.
30031819200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 411 (or 387 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The spelling of 30031819200 in words is "thirty billion, thirty-one million, eight hundred nineteen thousand, two hundred".
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