Base | Representation |
---|---|
bin | 11100110000100110… |
… | …100001010010001111 |
3 | 2221201002111102211100 |
4 | 130300212201102033 |
5 | 1001220311101442 |
6 | 22104113154143 |
7 | 2142145105305 |
oct | 346046412217 |
9 | 87632442740 |
10 | 30880175247 |
11 | 12107065799 |
12 | 5b9985b953 |
13 | 2bb183a05c |
14 | 16cd2c4275 |
15 | c0b03b84c |
hex | 7309a148f |
30880175247 has 24 divisors (see below), whose sum is σ = 45892750176. Its totient is φ = 19994302656.
The previous prime is 30880175219. The next prime is 30880175251. The reversal of 30880175247 is 74257108803.
30880175247 is a `hidden beast` number, since 30 + 8 + 80 + 17 + 524 + 7 = 666.
It is not a de Polignac number, because 30880175247 - 214 = 30880158863 is a prime.
It is a super-2 number, since 2×308801752472 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30880175747) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102238 + ... + 268724.
It is an arithmetic number, because the mean of its divisors is an integer number (1912197924).
Almost surely, 230880175247 is an apocalyptic number.
30880175247 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
30880175247 is a deficient number, since it is larger than the sum of its proper divisors (15012574929).
30880175247 is a wasteful number, since it uses less digits than its factorization.
30880175247 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 167087 (or 167084 counting only the distinct ones).
The product of its (nonzero) digits is 376320, while the sum is 45.
The spelling of 30880175247 in words is "thirty billion, eight hundred eighty million, one hundred seventy-five thousand, two hundred forty-seven".
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