Base | Representation |
---|---|
bin | 111010000101… |
… | …1010100000110 |
3 | 2010022021110200 |
4 | 1310023110012 |
5 | 30244030141 |
6 | 3004431330 |
7 | 516602136 |
oct | 164132406 |
9 | 63267420 |
10 | 30455046 |
11 | 16211366 |
12 | a248546 |
13 | 640414b |
14 | 408aac6 |
15 | 2a18ab6 |
hex | 1d0b506 |
30455046 has 48 divisors (see below), whose sum is σ = 69975360. Its totient is φ = 9555840.
The previous prime is 30455003. The next prime is 30455057. The reversal of 30455046 is 64055403.
It is a super-3 number, since 3×304550463 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20691 + ... + 22113.
It is an arithmetic number, because the mean of its divisors is an integer number (1457820).
Almost surely, 230455046 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30455046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34987680).
30455046 is an abundant number, since it is smaller than the sum of its proper divisors (39520314).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30455046 is a wasteful number, since it uses less digits than its factorization.
30455046 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1501 (or 1498 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 27.
The square root of 30455046 is about 5518.6090638856. The cubic root of 30455046 is about 312.2864110618.
The spelling of 30455046 in words is "thirty million, four hundred fifty-five thousand, forty-six".
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