Base | Representation |
---|---|
bin | 11011111101111110… |
… | …000001100101111111 |
3 | 2212111220001120022122 |
4 | 123331332001211333 |
5 | 443000324331004 |
6 | 21443530033155 |
7 | 2112121504646 |
oct | 337576014577 |
9 | 85456046278 |
10 | 30030698879 |
11 | 11810601605 |
12 | 59a12787bb |
13 | 2aa785320c |
14 | 164c55a35d |
15 | bab68ecbe |
hex | 6fdf8197f |
30030698879 has 6 divisors (see below), whose sum is σ = 30531079800. Its totient is φ = 29538388680.
The previous prime is 30030698837. The next prime is 30030698899. The reversal of 30030698879 is 97889603003.
It is not a de Polignac number, because 30030698879 - 28 = 30030698623 is a prime.
It is a super-2 number, since 2×300306988792 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30030698879.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030698899) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4031579 + ... + 4039020.
It is an arithmetic number, because the mean of its divisors is an integer number (5088513300).
Almost surely, 230030698879 is an apocalyptic number.
30030698879 is a deficient number, since it is larger than the sum of its proper divisors (500380921).
30030698879 is an frugal number, since it uses more digits than its factorization.
30030698879 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8070721 (or 8070660 counting only the distinct ones).
The product of its (nonzero) digits is 1959552, while the sum is 53.
The spelling of 30030698879 in words is "thirty billion, thirty million, six hundred ninety-eight thousand, eight hundred seventy-nine".
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