Base | Representation |
---|---|
bin | 111010000101… |
… | …1001100010111 |
3 | 2010022020210100 |
4 | 1310023030113 |
5 | 30244021201 |
6 | 3004425143 |
7 | 516600531 |
oct | 164131427 |
9 | 63266710 |
10 | 30454551 |
11 | 16210a56 |
12 | a2481b3 |
13 | 6403b5a |
14 | 408a851 |
15 | 2a18886 |
hex | 1d0b317 |
30454551 has 12 divisors (see below), whose sum is σ = 44066880. Its totient is φ = 20267520.
The previous prime is 30454537. The next prime is 30454559. The reversal of 30454551 is 15545403.
It is not a de Polignac number, because 30454551 - 213 = 30446359 is a prime.
It is a super-2 number, since 2×304545512 = 1854959353223202, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30454559) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3130 + ... + 8408.
It is an arithmetic number, because the mean of its divisors is an integer number (3672240).
Almost surely, 230454551 is an apocalyptic number.
30454551 is a deficient number, since it is larger than the sum of its proper divisors (13612329).
30454551 is a wasteful number, since it uses less digits than its factorization.
30454551 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5926 (or 5923 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 27.
The square root of 30454551 is about 5518.5642154459. The cubic root of 30454551 is about 312.2847191407.
Adding to 30454551 its reverse (15545403), we get a palindrome (45999954).
It can be divided in two parts, 30 and 454551, that added together give a triangular number (454581 = T953).
The spelling of 30454551 in words is "thirty million, four hundred fifty-four thousand, five hundred fifty-one".
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