Base | Representation |
---|---|
bin | 111010100000… |
… | …0001101111101 |
3 | 2010201021201102 |
4 | 1311000031331 |
5 | 30322443431 |
6 | 3013222445 |
7 | 521463662 |
oct | 165001575 |
9 | 63637642 |
10 | 30671741 |
11 | 1634a151 |
12 | a331a25 |
13 | 647b979 |
14 | 4105a69 |
15 | 2a5cdcb |
hex | 1d4037d |
30671741 has 4 divisors (see below), whose sum is σ = 31661184. Its totient is φ = 29682300.
The previous prime is 30671701. The next prime is 30671759. The reversal of 30671741 is 14717603.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14717603 = 73 ⋅201611.
It is a cyclic number.
It is not a de Polignac number, because 30671741 - 214 = 30655357 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30671701) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494675 + ... + 494736.
It is an arithmetic number, because the mean of its divisors is an integer number (7915296).
Almost surely, 230671741 is an apocalyptic number.
30671741 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
30671741 is a deficient number, since it is larger than the sum of its proper divisors (989443).
30671741 is an equidigital number, since it uses as much as digits as its factorization.
30671741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 989442.
The product of its (nonzero) digits is 3528, while the sum is 29.
The square root of 30671741 is about 5538.2073814548. The cubic root of 30671741 is about 313.0253256905.
The spelling of 30671741 in words is "thirty million, six hundred seventy-one thousand, seven hundred forty-one".
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