Base | Representation |
---|---|
bin | 11011111101111101… |
… | …110110110011000101 |
3 | 2212111212222022122221 |
4 | 123331331312303011 |
5 | 443000321422121 |
6 | 21443525052341 |
7 | 2112121232020 |
oct | 337575666305 |
9 | 85455868587 |
10 | 30030654661 |
11 | 11810581367 |
12 | 59a12570b1 |
13 | 2aa7839057 |
14 | 164c5481b7 |
15 | bab681b41 |
hex | 6fdf76cc5 |
30030654661 has 4 divisors (see below), whose sum is σ = 34320748192. Its totient is φ = 25740561132.
The previous prime is 30030654623. The next prime is 30030654677. The reversal of 30030654661 is 16645603003.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30030654661 - 213 = 30030646469 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030654601) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145046755 + ... + 2145046768.
It is an arithmetic number, because the mean of its divisors is an integer number (8580187048).
Almost surely, 230030654661 is an apocalyptic number.
It is an amenable number.
30030654661 is a deficient number, since it is larger than the sum of its proper divisors (4290093531).
30030654661 is an equidigital number, since it uses as much as digits as its factorization.
30030654661 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4290093530.
The product of its (nonzero) digits is 38880, while the sum is 34.
The spelling of 30030654661 in words is "thirty billion, thirty million, six hundred fifty-four thousand, six hundred sixty-one".
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