Base | Representation |
---|---|
bin | 111010100010… |
… | …1110011010000 |
3 | 2010202110002100 |
4 | 1311011303100 |
5 | 30324211413 |
6 | 3013520400 |
7 | 521620440 |
oct | 165056320 |
9 | 63673070 |
10 | 30694608 |
11 | 1636534a |
12 | a343100 |
13 | 64891b9 |
14 | 4110120 |
15 | 2a64a73 |
hex | 1d45cd0 |
30694608 has 120 divisors (see below), whose sum is σ = 100949888. Its totient is φ = 8522496.
The previous prime is 30694603. The next prime is 30694637. The reversal of 30694608 is 80649603.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30694603) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36885 + ... + 37707.
Almost surely, 230694608 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30694608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50474944).
30694608 is an abundant number, since it is smaller than the sum of its proper divisors (70255280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30694608 is a wasteful number, since it uses less digits than its factorization.
30694608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 881 (or 872 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The square root of 30694608 is about 5540.2714734930. The cubic root of 30694608 is about 313.1030973002.
The spelling of 30694608 in words is "thirty million, six hundred ninety-four thousand, six hundred eight".
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