Base | Representation |
---|---|
bin | 11100000100110011… |
… | …011001101100101101 |
3 | 2212210212210200022122 |
4 | 130010303121230231 |
5 | 443214202321131 |
6 | 21503143322325 |
7 | 2115013200011 |
oct | 340463315455 |
9 | 85725720278 |
10 | 30145354541 |
11 | 1186a2a3055 |
12 | 5a137503a5 |
13 | 2ac55286c3 |
14 | 165d884541 |
15 | bb678bd7b |
hex | 704cd9b2d |
30145354541 has 4 divisors (see below), whose sum is σ = 30160346784. Its totient is φ = 30130362300.
The previous prime is 30145354523. The next prime is 30145354549. The reversal of 30145354541 is 14545354103.
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: 14545354103 = 7 ⋅2077907729.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30145354541 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 (30145354549) 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, 7493105 + ... + 7497126.
It is an arithmetic number, because the mean of its divisors is an integer number (7540086696).
Almost surely, 230145354541 is an apocalyptic number.
It is an amenable number.
30145354541 is a deficient number, since it is larger than the sum of its proper divisors (14992243).
30145354541 is a wasteful number, since it uses less digits than its factorization.
30145354541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14992242.
The product of its (nonzero) digits is 72000, while the sum is 35.
The spelling of 30145354541 in words is "thirty billion, one hundred forty-five million, three hundred fifty-four thousand, five hundred forty-one".
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