Base | Representation |
---|---|
bin | 111010111100… |
… | …1101010101011 |
3 | 2011011020111121 |
4 | 1311321222223 |
5 | 30403011201 |
6 | 3022240111 |
7 | 523464010 |
oct | 165715253 |
9 | 64136447 |
10 | 30907051 |
11 | 1649aa1a |
12 | a426037 |
13 | 6531ac6 |
14 | 4167707 |
15 | 2aa79a1 |
hex | 1d79aab |
30907051 has 8 divisors (see below), whose sum is σ = 35361504. Its totient is φ = 26462400.
The previous prime is 30907043. The next prime is 30907061. The reversal of 30907051 is 15070903.
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 30907051 - 23 = 30907043 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30907001) 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, 6501 + ... + 10201.
It is an arithmetic number, because the mean of its divisors is an integer number (4420188).
Almost surely, 230907051 is an apocalyptic number.
30907051 is a deficient number, since it is larger than the sum of its proper divisors (4454453).
30907051 is a wasteful number, since it uses less digits than its factorization.
30907051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4901.
The product of its (nonzero) digits is 945, while the sum is 25.
The square root of 30907051 is about 5559.4110299563. The cubic root of 30907051 is about 313.8237851258.
Adding to 30907051 its reverse (15070903), we get a palindrome (45977954).
The spelling of 30907051 in words is "thirty million, nine hundred seven thousand, fifty-one".
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