Base | Representation |
---|---|
bin | 11100000111001100… |
… | …101110000110000000 |
3 | 2212220200102121210100 |
4 | 130013030232012000 |
5 | 443304444433422 |
6 | 21511141002400 |
7 | 2116011623421 |
oct | 340714560600 |
9 | 85820377710 |
10 | 30185546112 |
11 | 1188aa54627 |
12 | 5a250b3400 |
13 | 2b0095b4b7 |
14 | 1664d47648 |
15 | bba07a7ac |
hex | 70732e180 |
30185546112 has 96 divisors (see below), whose sum is σ = 88980779160. Its totient is φ = 9816422400.
The previous prime is 30185546101. The next prime is 30185546119. The reversal of 30185546112 is 21164558103.
30185546112 is a `hidden beast` number, since 3 + 0 + 185 + 5 + 461 + 12 = 666.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-3 number, since 3×301855461123 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30185546119) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272314 + ... + 366777.
Almost surely, 230185546112 is an apocalyptic number.
30185546112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30185546112 is an abundant number, since it is smaller than the sum of its proper divisors (58795233048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30185546112 is a wasteful number, since it uses less digits than its factorization.
30185546112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 639152 (or 639137 counting only the distinct ones).
The product of its (nonzero) digits is 28800, while the sum is 36.
The spelling of 30185546112 in words is "thirty billion, one hundred eighty-five million, five hundred forty-six thousand, one hundred twelve".
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