Base | Representation |
---|---|
bin | 111010000000… |
… | …0110101101001 |
3 | 2010020002121110 |
4 | 1310000311221 |
5 | 30241142022 |
6 | 3003500533 |
7 | 516333060 |
oct | 164006551 |
9 | 63202543 |
10 | 30412137 |
11 | 161920a8 |
12 | a227749 |
13 | 63ba762 |
14 | 40791d7 |
15 | 2a0b00c |
hex | 1d00d69 |
30412137 has 16 divisors (see below), whose sum is σ = 47421440. Its totient is φ = 16973712.
The previous prime is 30412111. The next prime is 30412159. The reversal of 30412137 is 73121403.
It is not a de Polignac number, because 30412137 - 26 = 30412073 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30412177) 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 15 ways as a sum of consecutive naturals, for example, 15937 + ... + 17742.
It is an arithmetic number, because the mean of its divisors is an integer number (2963840).
Almost surely, 230412137 is an apocalyptic number.
It is an amenable number.
30412137 is a deficient number, since it is larger than the sum of its proper divisors (17009303).
30412137 is a wasteful number, since it uses less digits than its factorization.
30412137 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33732.
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 30412137 is about 5514.7200291583. The cubic root of 30412137 is about 312.1396789931.
The spelling of 30412137 in words is "thirty million, four hundred twelve thousand, one hundred thirty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •