Base | Representation |
---|---|
bin | 11100011100011110… |
… | …101011100001111101 |
3 | 2220211120020121100221 |
4 | 130130132223201331 |
5 | 1000022344410431 |
6 | 22010413221341 |
7 | 2130605416216 |
oct | 343436534175 |
9 | 86746217327 |
10 | 30542575741 |
11 | 11a53540237 |
12 | 5b04791851 |
13 | 2b59906232 |
14 | 169a52440d |
15 | bdb5a2111 |
hex | 71c7ab87d |
30542575741 has 4 divisors (see below), whose sum is σ = 30545178300. Its totient is φ = 30539973184.
The previous prime is 30542575691. The next prime is 30542575747. The reversal of 30542575741 is 14757524503.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14757524503 = 409 ⋅36081967.
It can be written as a sum of positive squares in 2 ways, for example, as 3381887716 + 27160688025 = 58154^2 + 164805^2 .
It is a cyclic number.
It is not a de Polignac number, because 30542575741 - 29 = 30542575229 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 (30542575747) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283596 + ... + 1307173.
It is an arithmetic number, because the mean of its divisors is an integer number (7636294575).
Almost surely, 230542575741 is an apocalyptic number.
It is an amenable number.
30542575741 is a deficient number, since it is larger than the sum of its proper divisors (2602559).
30542575741 is a wasteful number, since it uses less digits than its factorization.
30542575741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2602558.
The product of its (nonzero) digits is 588000, while the sum is 43.
The spelling of 30542575741 in words is "thirty billion, five hundred forty-two million, five hundred seventy-five thousand, seven hundred forty-one".
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