Base | Representation |
---|---|
bin | 11100000101111010… |
… | …011110101100000000 |
3 | 2212212011212022112010 |
4 | 130011322132230000 |
5 | 443233440042300 |
6 | 21505050532520 |
7 | 2115330442434 |
oct | 340572365400 |
9 | 85764768463 |
10 | 30163987200 |
11 | 1187986a046 |
12 | 5a19a37140 |
13 | 2ac9350649 |
14 | 16621349c4 |
15 | bb821ca50 |
hex | 705e9eb00 |
30163987200 has 216 divisors, whose sum is σ = 99951133968. Its totient is φ = 8011120640.
The previous prime is 30163987171. The next prime is 30163987201. The reversal of 30163987200 is 278936103.
It is a super-2 number, since 2×301639872002 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30163987201) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4931344 + ... + 4937456.
Almost surely, 230163987200 is an apocalyptic number.
30163987200 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 30163987200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49975566984).
30163987200 is an abundant number, since it is smaller than the sum of its proper divisors (69787146768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30163987200 is a wasteful number, since it uses less digits than its factorization.
30163987200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6399 (or 6380 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 39.
The spelling of 30163987200 in words is "thirty billion, one hundred sixty-three million, nine hundred eighty-seven thousand, two hundred".
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