Base | Representation |
---|---|
bin | 11100110110011100… |
… | …111011100100000111 |
3 | 2221221221011221121212 |
4 | 130312130323210013 |
5 | 1001420422342433 |
6 | 22121541002035 |
7 | 2144446262402 |
oct | 346634734407 |
9 | 87857157555 |
10 | 30978324743 |
11 | 12157502983 |
12 | 60066b331b |
13 | 2bc8c83492 |
14 | 16dc352d39 |
15 | c14977d48 |
hex | 73673b907 |
30978324743 has 8 divisors (see below), whose sum is σ = 31418422560. Its totient is φ = 30538332160.
The previous prime is 30978324731. The next prime is 30978324763. The reversal of 30978324743 is 34742387903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30978324743 - 214 = 30978308359 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30978324691 and 30978324700.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30978324763) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712823 + ... + 755031.
It is an arithmetic number, because the mean of its divisors is an integer number (3927302820).
Almost surely, 230978324743 is an apocalyptic number.
30978324743 is a deficient number, since it is larger than the sum of its proper divisors (440097817).
30978324743 is a wasteful number, since it uses less digits than its factorization.
30978324743 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52617.
The product of its (nonzero) digits is 3048192, while the sum is 50.
The spelling of 30978324743 in words is "thirty billion, nine hundred seventy-eight million, three hundred twenty-four thousand, seven hundred forty-three".
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