Base | Representation |
---|---|
bin | 11100000011100010… |
… | …000001100001111110 |
3 | 2212202101122212102022 |
4 | 130003202001201332 |
5 | 443143222200021 |
6 | 21501102200142 |
7 | 2114333650460 |
oct | 340342014176 |
9 | 85671585368 |
10 | 30124021886 |
11 | 11859252562 |
12 | 5a08583052 |
13 | 2ac0c9982a |
14 | 165aad0130 |
15 | bb49761ab |
hex | 70388187e |
30124021886 has 32 divisors (see below), whose sum is σ = 53985277440. Its totient is φ = 12326330016.
The previous prime is 30124021877. The next prime is 30124021927. The reversal of 30124021886 is 68812042103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90620 + ... + 261648.
It is an arithmetic number, because the mean of its divisors is an integer number (1687039920).
Almost surely, 230124021886 is an apocalyptic number.
30124021886 is a deficient number, since it is larger than the sum of its proper divisors (23861255554).
30124021886 is a wasteful number, since it uses less digits than its factorization.
30124021886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171608.
The product of its (nonzero) digits is 18432, while the sum is 35.
Adding to 30124021886 its reverse (68812042103), we get a palindrome (98936063989).
The spelling of 30124021886 in words is "thirty billion, one hundred twenty-four million, twenty-one thousand, eight hundred eighty-six".
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