Base | Representation |
---|---|
bin | 111010001011… |
… | …0011001100110 |
3 | 2010101120202110 |
4 | 1310112121212 |
5 | 30302003304 |
6 | 3005421450 |
7 | 520151415 |
oct | 164263146 |
9 | 63346673 |
10 | 30500454 |
11 | 16242496 |
12 | a26a886 |
13 | 641ba0a |
14 | 409d47c |
15 | 2a27289 |
hex | 1d16666 |
30500454 has 16 divisors (see below), whose sum is σ = 61065648. Its totient is φ = 10156032.
The previous prime is 30500443. The next prime is 30500467. The reversal of 30500454 is 45400503.
It is a happy number.
It is a super-2 number, since 2×305004542 = 1860555388412232, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30500454.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 5214 + ... + 9390.
It is an arithmetic number, because the mean of its divisors is an integer number (3816603).
Almost surely, 230500454 is an apocalyptic number.
30500454 is an abundant number, since it is smaller than the sum of its proper divisors (30565194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30500454 is a wasteful number, since it uses less digits than its factorization.
30500454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5399.
The product of its (nonzero) digits is 1200, while the sum is 21.
The square root of 30500454 is about 5522.7216116694. The cubic root of 30500454 is about 312.4415387173.
Adding to 30500454 its reverse (45400503), we get a palindrome (75900957).
The spelling of 30500454 in words is "thirty million, five hundred thousand, four hundred fifty-four".
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