Base | Representation |
---|---|
bin | 11100001000011011… |
… | …011000110110011000 |
3 | 2212222010020100100110 |
4 | 130020123120312120 |
5 | 443330234342342 |
6 | 21513155004320 |
7 | 2116352124054 |
oct | 341033306630 |
9 | 85863210313 |
10 | 30206168472 |
11 | 118a065a4a7 |
12 | 5a2bb996a0 |
13 | 2b04ccbc8c |
14 | 1667994c64 |
15 | bbbca0c9c |
hex | 7086d8d98 |
30206168472 has 16 divisors (see below), whose sum is σ = 75515421240. Its totient is φ = 10068722816.
The previous prime is 30206168467. The next prime is 30206168491. The reversal of 30206168472 is 27486160203.
It is a happy number.
It is a super-2 number, since 2×302061684722 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30206168472.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629295153 + ... + 629295200.
Almost surely, 230206168472 is an apocalyptic number.
It is an amenable number.
30206168472 is an abundant number, since it is smaller than the sum of its proper divisors (45309252768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30206168472 is a wasteful number, since it uses less digits than its factorization.
30206168472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1258590362 (or 1258590358 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 39.
The spelling of 30206168472 in words is "thirty billion, two hundred six million, one hundred sixty-eight thousand, four hundred seventy-two".
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