Base | Representation |
---|---|
bin | 11100101110110011… |
… | …011011000000000001 |
3 | 2221121222201112012200 |
4 | 130232303123000001 |
5 | 1001140100043240 |
6 | 22101114343413 |
7 | 2141330461356 |
oct | 345663330001 |
9 | 87558645180 |
10 | 30850002945 |
11 | 120a1027903 |
12 | 5b8b72ab69 |
13 | 2ba8504818 |
14 | 16c92ac62d |
15 | c0857b930 |
hex | 72ecdb001 |
30850002945 has 24 divisors (see below), whose sum is σ = 55317249000. Its totient is φ = 15885977856.
The previous prime is 30850002929. The next prime is 30850002949. The reversal of 30850002945 is 54920005803.
It can be written as a sum of positive squares in 4 ways, for example, as 242064 + 30849760881 = 492^2 + 175641^2 .
It is not a de Polignac number, because 30850002945 - 24 = 30850002929 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30850002949) 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, 11818620 + ... + 11821229.
It is an arithmetic number, because the mean of its divisors is an integer number (2304885375).
Almost surely, 230850002945 is an apocalyptic number.
It is an amenable number.
30850002945 is a deficient number, since it is larger than the sum of its proper divisors (24467246055).
30850002945 is a wasteful number, since it uses less digits than its factorization.
30850002945 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23639889 (or 23639886 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 36.
The spelling of 30850002945 in words is "thirty billion, eight hundred fifty million, two thousand, nine hundred forty-five".
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