Base | Representation |
---|---|
bin | 11100000101010100… |
… | …111000110110011101 |
3 | 2212211111022122221210 |
4 | 130011110320312131 |
5 | 443223424223033 |
6 | 21504055415033 |
7 | 2115150620613 |
oct | 340524706635 |
9 | 85744278853 |
10 | 30154132893 |
11 | 11874249395 |
12 | 5a16684479 |
13 | 2ac72b01b1 |
14 | 1660acb6b3 |
15 | bb7422d63 |
hex | 705538d9d |
30154132893 has 8 divisors (see below), whose sum is σ = 40206984256. Its totient is φ = 20102018400.
The previous prime is 30154132781. The next prime is 30154132903. The reversal of 30154132893 is 39823145103.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30154132893 - 28 = 30154132637 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 (30154132093) 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, 80368 + ... + 258393.
It is an arithmetic number, because the mean of its divisors is an integer number (5025873032).
Almost surely, 230154132893 is an apocalyptic number.
It is an amenable number.
30154132893 is a deficient number, since it is larger than the sum of its proper divisors (10052851363).
30154132893 is a wasteful number, since it uses less digits than its factorization.
30154132893 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 368435.
The product of its (nonzero) digits is 77760, while the sum is 39.
Adding to 30154132893 its reverse (39823145103), we get a palindrome (69977277996).
The spelling of 30154132893 in words is "thirty billion, one hundred fifty-four million, one hundred thirty-two thousand, eight hundred ninety-three".
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