Base | Representation |
---|---|
bin | 11100010111011111… |
… | …010010110101110101 |
3 | 2220121201200221011122 |
4 | 130113133102311311 |
5 | 444334431210202 |
6 | 21554222513325 |
7 | 2125540646633 |
oct | 342737226565 |
9 | 86551627148 |
10 | 30458850677 |
11 | 11a10255372 |
12 | 5aa0735845 |
13 | 2b45470488 |
14 | 168d36c353 |
15 | bd40649a2 |
hex | 7177d2d75 |
30458850677 has 4 divisors (see below), whose sum is σ = 31201749516. Its totient is φ = 29715951840.
The previous prime is 30458850659. The next prime is 30458850689. The reversal of 30458850677 is 77605885403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77605885403 = 101 ⋅768375103.
It can be written as a sum of positive squares in 2 ways, for example, as 530196676 + 29928654001 = 23026^2 + 172999^2 .
It is a cyclic number.
It is not a de Polignac number, because 30458850677 - 216 = 30458785141 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 (30458850977) 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, 371449358 + ... + 371449439.
It is an arithmetic number, because the mean of its divisors is an integer number (7800437379).
Almost surely, 230458850677 is an apocalyptic number.
It is an amenable number.
30458850677 is a deficient number, since it is larger than the sum of its proper divisors (742898839).
30458850677 is an equidigital number, since it uses as much as digits as its factorization.
30458850677 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 742898838.
The product of its (nonzero) digits is 5644800, while the sum is 53.
The spelling of 30458850677 in words is "thirty billion, four hundred fifty-eight million, eight hundred fifty thousand, six hundred seventy-seven".
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