Base | Representation |
---|---|
bin | 1101101001100111010010… |
… | …01000111001010000100100 |
3 | 10221021121111022001200010220 |
4 | 12310303221020321100210 |
5 | 12413300102034344320 |
6 | 143501403550444340 |
7 | 6215444532465021 |
oct | 664635110712044 |
9 | 127247438050126 |
10 | 30017142887460 |
11 | 9623220684143 |
12 | 34496345036b0 |
13 | 13997b1c11041 |
14 | 75aba2022548 |
15 | 370c34cc7e40 |
hex | 1b4ce9239424 |
30017142887460 has 48 divisors (see below), whose sum is σ = 87702260962176. Its totient is φ = 7656546591232.
The previous prime is 30017142887419. The next prime is 30017142887467. The reversal of 30017142887460 is 6478824171003.
It is not an unprimeable number, because it can be changed into a prime (30017142887467) 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, 10875775029 + ... + 10875777788.
It is an arithmetic number, because the mean of its divisors is an integer number (1827130436712).
Almost surely, 230017142887460 is an apocalyptic number.
30017142887460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30017142887460 is an abundant number, since it is smaller than the sum of its proper divisors (57685118074716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30017142887460 is a wasteful number, since it uses less digits than its factorization.
30017142887460 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21751552852 (or 21751552850 counting only the distinct ones).
The product of its (nonzero) digits is 1806336, while the sum is 51.
The spelling of 30017142887460 in words is "thirty trillion, seventeen billion, one hundred forty-two million, eight hundred eighty-seven thousand, four hundred sixty".
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