Base | Representation |
---|---|
bin | 11100000101100001… |
… | …111011011101010101 |
3 | 2212211201202100022211 |
4 | 130011201323131111 |
5 | 443230313121240 |
6 | 21504300553421 |
7 | 2115221646340 |
oct | 340541733525 |
9 | 85751670284 |
10 | 30157551445 |
11 | 1187617383a |
12 | 5a17852871 |
13 | 2ac7c091c8 |
14 | 166133b457 |
15 | bb789abea |
hex | 70587b755 |
30157551445 has 16 divisors (see below), whose sum is σ = 41684594688. Its totient is φ = 20516630400.
The previous prime is 30157551379. The next prime is 30157551449. The reversal of 30157551445 is 54415575103.
It is a happy number.
It is not a de Polignac number, because 30157551445 - 217 = 30157420373 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30157551398 and 30157551407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30157551449) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3387856 + ... + 3396745.
It is an arithmetic number, because the mean of its divisors is an integer number (2605287168).
Almost surely, 230157551445 is an apocalyptic number.
30157551445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30157551445 is a deficient number, since it is larger than the sum of its proper divisors (11527043243).
30157551445 is a wasteful number, since it uses less digits than its factorization.
30157551445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6784740.
The product of its (nonzero) digits is 210000, while the sum is 40.
The spelling of 30157551445 in words is "thirty billion, one hundred fifty-seven million, five hundred fifty-one thousand, four hundred forty-five".
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