Base | Representation |
---|---|
bin | 11100010111000001… |
… | …100011011010101010 |
3 | 2220121012000211111002 |
4 | 130113001203122222 |
5 | 444330432214000 |
6 | 21553343435002 |
7 | 2125414455551 |
oct | 342701433252 |
9 | 86535024432 |
10 | 30451054250 |
11 | 11a0690a841 |
12 | 5a99bb5a62 |
13 | 2b439708c6 |
14 | 168c2dcd98 |
15 | bd35248d5 |
hex | 7170636aa |
30451054250 has 32 divisors (see below), whose sum is σ = 57078861840. Its totient is φ = 12164505600.
The previous prime is 30451054243. The next prime is 30451054259. The reversal of 30451054250 is 5245015403.
It can be written as a sum of positive squares in 8 ways, for example, as 5697381361 + 24753672889 = 75481^2 + 157333^2 .
It is not an unprimeable number, because it can be changed into a prime (30451054259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113054 + ... + 271446.
Almost surely, 230451054250 is an apocalyptic number.
30451054250 is a deficient number, since it is larger than the sum of its proper divisors (26627807590).
30451054250 is a wasteful number, since it uses less digits than its factorization.
30451054250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159179 (or 159169 counting only the distinct ones).
The product of its (nonzero) digits is 12000, while the sum is 29.
Adding to 30451054250 its reverse (5245015403), we get a palindrome (35696069653).
The spelling of 30451054250 in words is "thirty billion, four hundred fifty-one million, fifty-four thousand, two hundred fifty".
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