Base | Representation |
---|---|
bin | 11100001000010111… |
… | …110101000100110100 |
3 | 2212222001110221120020 |
4 | 130020113311010310 |
5 | 443330020014013 |
6 | 21513123005140 |
7 | 2116341160050 |
oct | 341027650464 |
9 | 85861427506 |
10 | 30205235508 |
11 | 118a0082558 |
12 | 5a2b8097b0 |
13 | 2b04a63426 |
14 | 16677d0c60 |
15 | bbbb69623 |
hex | 7085f5134 |
30205235508 has 48 divisors (see below), whose sum is σ = 80555798400. Its totient is φ = 8629156224.
The previous prime is 30205235479. The next prime is 30205235531. The reversal of 30205235508 is 80553250203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514610 + ... + 1534422.
It is an arithmetic number, because the mean of its divisors is an integer number (1678245800).
Almost surely, 230205235508 is an apocalyptic number.
It is an amenable number.
30205235508 is an abundant number, since it is smaller than the sum of its proper divisors (50350562892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30205235508 is a wasteful number, since it uses less digits than its factorization.
30205235508 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37976 (or 37974 counting only the distinct ones).
The product of its (nonzero) digits is 36000, while the sum is 33.
The spelling of 30205235508 in words is "thirty billion, two hundred five million, two hundred thirty-five thousand, five hundred eight".
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