Base | Representation |
---|---|
bin | 111011000010… |
… | …1000100001101 |
3 | 2011020121112212 |
4 | 1312011010031 |
5 | 30411004431 |
6 | 3023240205 |
7 | 524050100 |
oct | 166050415 |
9 | 64217485 |
10 | 30953741 |
11 | 16522005 |
12 | a449065 |
13 | 654a130 |
14 | 417a737 |
15 | 2ab672b |
hex | 1d8510d |
30953741 has 12 divisors (see below), whose sum is σ = 38778012. Its totient is φ = 24490368.
The previous prime is 30953737. The next prime is 30953743. The reversal of 30953741 is 14735903.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 19758025 = 3346^2 + 4445^2 .
It is not a de Polignac number, because 30953741 - 22 = 30953737 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30953698 and 30953707.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30953743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23660 + ... + 24933.
It is an arithmetic number, because the mean of its divisors is an integer number (3231501).
Almost surely, 230953741 is an apocalyptic number.
It is an amenable number.
30953741 is a deficient number, since it is larger than the sum of its proper divisors (7824271).
30953741 is a wasteful number, since it uses less digits than its factorization.
30953741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48620 (or 48613 counting only the distinct ones).
The product of its (nonzero) digits is 11340, while the sum is 32.
The square root of 30953741 is about 5563.6086310955. The cubic root of 30953741 is about 313.9817324762.
The spelling of 30953741 in words is "thirty million, nine hundred fifty-three thousand, seven hundred forty-one".
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