Base | Representation |
---|---|
bin | 11011111101011101… |
… | …100111001110000000 |
3 | 2212111022001220010022 |
4 | 123331131213032000 |
5 | 442441140432430 |
6 | 21443023553012 |
7 | 2111656336262 |
oct | 337535471600 |
9 | 85438056108 |
10 | 30022202240 |
11 | 11806828998 |
12 | 599a45b768 |
13 | 2aa5b69a14 |
14 | 164b387b32 |
15 | baaa624e5 |
hex | 6fd767380 |
30022202240 has 64 divisors (see below), whose sum is σ = 72636676560. Its totient is φ = 11864174592.
The previous prime is 30022202239. The next prime is 30022202279. The reversal of 30022202240 is 4220222003.
It is a tau number, because it is divible by the number of its divisors (64).
It is a super-2 number, since 2×300222022402 (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 7 ways as a sum of consecutive naturals, for example, 229469 + ... + 335708.
Almost surely, 230022202240 is an apocalyptic number.
It is an amenable number.
30022202240 is an abundant number, since it is smaller than the sum of its proper divisors (42614474320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30022202240 is an equidigital number, since it uses as much as digits as its factorization.
30022202240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 565279 (or 565267 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 17.
Adding to 30022202240 its reverse (4220222003), we get a palindrome (34242424243).
The spelling of 30022202240 in words is "thirty billion, twenty-two million, two hundred two thousand, two hundred forty".
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