Base | Representation |
---|---|
bin | 11100101011111100… |
… | …111100110110110100 |
3 | 2221111122201022202000 |
4 | 130223330330312310 |
5 | 1001040323404033 |
6 | 22052245215300 |
7 | 2140210055523 |
oct | 345374746664 |
9 | 87448638660 |
10 | 30802169268 |
11 | 12077026742 |
12 | 5b77701530 |
13 | 2b9b627480 |
14 | 16c2bba4ba |
15 | c0427da13 |
hex | 72bf3cdb4 |
30802169268 has 48 divisors (see below), whose sum is σ = 86000362560. Its totient is φ = 9477590112.
The previous prime is 30802169263. The next prime is 30802169309. The reversal of 30802169268 is 86296120803.
30802169268 is a `hidden beast` number, since 308 + 0 + 21 + 69 + 268 = 666.
It is a super-2 number, since 2×308021692682 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30802169263) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10968030 + ... + 10970837.
It is an arithmetic number, because the mean of its divisors is an integer number (1791674220).
Almost surely, 230802169268 is an apocalyptic number.
It is an amenable number.
30802169268 is an abundant number, since it is smaller than the sum of its proper divisors (55198193292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30802169268 is a wasteful number, since it uses less digits than its factorization.
30802169268 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21938893 (or 21938885 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The spelling of 30802169268 in words is "thirty billion, eight hundred two million, one hundred sixty-nine thousand, two hundred sixty-eight".
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