Base | Representation |
---|---|
bin | 11100100011000110… |
… | …100010001001101101 |
3 | 2221010022022121111211 |
4 | 130203012202021231 |
5 | 1000234320431011 |
6 | 22025422514421 |
7 | 2133425015023 |
oct | 344306421155 |
9 | 87108277454 |
10 | 30653686381 |
11 | 1200023030a |
12 | 5b35a35a11 |
13 | 2b76939c86 |
14 | 16ab1a8713 |
15 | be61edb21 |
hex | 7231a226d |
30653686381 has 8 divisors (see below), whose sum is σ = 30771518400. Its totient is φ = 30536049600.
The previous prime is 30653686363. The next prime is 30653686417. The reversal of 30653686381 is 18368635603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30653686381 - 27 = 30653686253 is a prime.
It is a super-2 number, since 2×306536863812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30653686351) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269781 + ... + 366181.
It is an arithmetic number, because the mean of its divisors is an integer number (3846439800).
Almost surely, 230653686381 is an apocalyptic number.
It is an amenable number.
30653686381 is a deficient number, since it is larger than the sum of its proper divisors (117832019).
30653686381 is an equidigital number, since it uses as much as digits as its factorization.
30653686381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97619.
The product of its (nonzero) digits is 1866240, while the sum is 49.
The spelling of 30653686381 in words is "thirty billion, six hundred fifty-three million, six hundred eighty-six thousand, three hundred eighty-one".
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