Base | Representation |
---|---|
bin | 111010011000… |
… | …1111001011000 |
3 | 2010121022020210 |
4 | 1310301321120 |
5 | 30314104310 |
6 | 3012051120 |
7 | 521130651 |
oct | 164617130 |
9 | 63538223 |
10 | 30613080 |
11 | 1630a073 |
12 | a303aa0 |
13 | 645b064 |
14 | 40cc528 |
15 | 2a4a820 |
hex | 1d31e58 |
30613080 has 64 divisors (see below), whose sum is σ = 92233440. Its totient is φ = 8128512.
The previous prime is 30613057. The next prime is 30613087. The reversal of 30613080 is 8031603.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30613087) 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 15 ways as a sum of consecutive naturals, for example, 40062 + ... + 40818.
Almost surely, 230613080 is an apocalyptic number.
30613080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30613080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46116720).
30613080 is an abundant number, since it is smaller than the sum of its proper divisors (61620360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30613080 is a wasteful number, since it uses less digits than its factorization.
30613080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1108 (or 1104 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
The square root of 30613080 is about 5532.9088190571. The cubic root of 30613080 is about 312.8256402824.
Adding to 30613080 its reverse (8031603), we get a palindrome (38644683).
The spelling of 30613080 in words is "thirty million, six hundred thirteen thousand, eighty".
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