Base | Representation |
---|---|
bin | 111010010001… |
… | …1011110010000 |
3 | 2010111022012122 |
4 | 1310203132100 |
5 | 30310212000 |
6 | 3010513412 |
7 | 520463501 |
oct | 164433620 |
9 | 63438178 |
10 | 30554000 |
11 | 16279744 |
12 | a295868 |
13 | 643a1b9 |
14 | 40b4ba8 |
15 | 2a38085 |
hex | 1d23790 |
30554000 has 40 divisors (see below), whose sum is σ = 73884408. Its totient is φ = 12220800.
The previous prime is 30553987. The next prime is 30554009. The reversal of 30554000 is 45503.
It can be written as a sum of positive squares in 4 ways, for example, as 6071296 + 24482704 = 2464^2 + 4948^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a self number, because there is not a number n which added to its sum of digits gives 30554000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30554009) 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, 5639 + ... + 9638.
Almost surely, 230554000 is an apocalyptic number.
It is an amenable number.
30554000 is an abundant number, since it is smaller than the sum of its proper divisors (43330408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30554000 is a wasteful number, since it uses less digits than its factorization.
30554000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15300 (or 15284 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 17.
The square root of 30554000 is about 5527.5672768407. The cubic root of 30554000 is about 312.6242705753.
Adding to 30554000 its reverse (45503), we get a palindrome (30599503).
The spelling of 30554000 in words is "thirty million, five hundred fifty-four thousand".
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