Base | Representation |
---|---|
bin | 111001001101… |
… | …1011111100110 |
3 | 2002110000012010 |
4 | 1302123133212 |
5 | 30134401110 |
6 | 2550535050 |
7 | 512653620 |
oct | 162333746 |
9 | 62400163 |
10 | 29997030 |
11 | 15a29238 |
12 | a067486 |
13 | 62a382b |
14 | 3dabc10 |
15 | 2978020 |
hex | 1c9b7e6 |
29997030 has 64 divisors (see below), whose sum is σ = 83317248. Its totient is φ = 6769920.
The previous prime is 29997013. The next prime is 29997043. The reversal of 29997030 is 3079992.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a self number, because there is not a number n which added to its sum of digits gives 29997030.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16570 + ... + 18290.
It is an arithmetic number, because the mean of its divisors is an integer number (1301832).
Almost surely, 229997030 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 29997030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41658624).
29997030 is an abundant number, since it is smaller than the sum of its proper divisors (53320218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
29997030 is a wasteful number, since it uses less digits than its factorization.
29997030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1821.
The product of its (nonzero) digits is 30618, while the sum is 39.
The square root of 29997030 is about 5476.9544456751. The cubic root of 29997030 is about 310.7129963897.
The spelling of 29997030 in words is "twenty-nine million, nine hundred ninety-seven thousand, thirty".
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