Base | Representation |
---|---|
bin | 11100001000101100… |
… | …111110010000000000 |
3 | 2212222102220112120212 |
4 | 130020230332100000 |
5 | 443332424344422 |
6 | 21513441453252 |
7 | 2116436243204 |
oct | 341054762000 |
9 | 85872815525 |
10 | 30210778112 |
11 | 118a3218819 |
12 | 5a31641228 |
13 | 2b05c54188 |
14 | 1668434b04 |
15 | bbc3b19e2 |
hex | 708b3e400 |
30210778112 has 44 divisors (see below), whose sum is σ = 61293566640. Its totient is φ = 14879901696.
The previous prime is 30210778109. The next prime is 30210778141. The reversal of 30210778112 is 21187701203.
It is a super-2 number, since 2×302107781122 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151562 + ... + 288777.
Almost surely, 230210778112 is an apocalyptic number.
30210778112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30210778112 is an abundant number, since it is smaller than the sum of its proper divisors (31082788528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30210778112 is an equidigital number, since it uses as much as digits as its factorization.
30210778112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 440426 (or 440408 counting only the distinct ones).
The product of its (nonzero) digits is 4704, while the sum is 32.
The spelling of 30210778112 in words is "thirty billion, two hundred ten million, seven hundred seventy-eight thousand, one hundred twelve".
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