Base | Representation |
---|---|
bin | 11100010100011001… |
… | …101100011111101111 |
3 | 2220111010020020201020 |
4 | 130110121230133233 |
5 | 444233201114442 |
6 | 21545132345223 |
7 | 2124341446116 |
oct | 342431543757 |
9 | 86433206636 |
10 | 30407051247 |
11 | 11993a95721 |
12 | 5a87315213 |
13 | 2b37805021 |
14 | 1686526c7d |
15 | bce7319ec |
hex | 71466c7ef |
30407051247 has 4 divisors (see below), whose sum is σ = 40542735000. Its totient is φ = 20271367496.
The previous prime is 30407051231. The next prime is 30407051287. The reversal of 30407051247 is 74215070403.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30407051247 - 24 = 30407051231 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30407051287) 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, 5067841872 + ... + 5067841877.
It is an arithmetic number, because the mean of its divisors is an integer number (10135683750).
Almost surely, 230407051247 is an apocalyptic number.
30407051247 is a deficient number, since it is larger than the sum of its proper divisors (10135683753).
30407051247 is a wasteful number, since it uses less digits than its factorization.
30407051247 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10135683752.
The product of its (nonzero) digits is 23520, while the sum is 33.
The spelling of 30407051247 in words is "thirty billion, four hundred seven million, fifty-one thousand, two hundred forty-seven".
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