Base | Representation |
---|---|
bin | 1110000011010100111010… |
… | …01000110000001000100010 |
3 | 11001102001221002220020020020 |
4 | 13001222131020300020202 |
5 | 13022233443021412032 |
6 | 145415315352054310 |
7 | 6336332305065102 |
oct | 701523510601042 |
9 | 131361832806206 |
10 | 30900631044642 |
11 | 993397a713047 |
12 | 35708ba994396 |
13 | 1431bbc873548 |
14 | 78b8544bb202 |
15 | 388be2906b2c |
hex | 1c1a9d230222 |
30900631044642 has 32 divisors (see below), whose sum is σ = 62553592156608. Its totient is φ = 10174852704576.
The previous prime is 30900631044611. The next prime is 30900631044667. The reversal of 30900631044642 is 24644013600903.
It is a junction number, because it is equal to n+sod(n) for n = 30900631044594 and 30900631044603.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196788 + ... + 7863840.
It is an arithmetic number, because the mean of its divisors is an integer number (1954799754894).
Almost surely, 230900631044642 is an apocalyptic number.
30900631044642 is an abundant number, since it is smaller than the sum of its proper divisors (31652961111966).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30900631044642 is a wasteful number, since it uses less digits than its factorization.
30900631044642 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7675234.
The product of its (nonzero) digits is 373248, while the sum is 42.
The spelling of 30900631044642 in words is "thirty trillion, nine hundred billion, six hundred thirty-one million, forty-four thousand, six hundred forty-two".
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