Base | Representation |
---|---|
bin | 1001000111000… |
… | …1110101110110 |
3 | 2122220112011111 |
4 | 2101301311312 |
5 | 34240340110 |
6 | 3443025234 |
7 | 642552040 |
oct | 221616566 |
9 | 78815144 |
10 | 38215030 |
11 | 1a631577 |
12 | 1096b21a |
13 | 7bc0259 |
14 | 510aa90 |
15 | 354ce8a |
hex | 2471d76 |
38215030 has 16 divisors (see below), whose sum is σ = 78613920. Its totient is φ = 13102272.
The previous prime is 38215027. The next prime is 38215063. The reversal of 38215030 is 3051283.
It is a junction number, because it is equal to n+sod(n) for n = 38214992 and 38215010.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272895 + ... + 273034.
It is an arithmetic number, because the mean of its divisors is an integer number (4913370).
Almost surely, 238215030 is an apocalyptic number.
38215030 is an abundant number, since it is smaller than the sum of its proper divisors (40398890).
38215030 is a wasteful number, since it uses less digits than its factorization.
38215030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 545943.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 38215030 is about 6181.8306350142. The cubic root of 38215030 is about 336.8304935219.
The spelling of 38215030 in words is "thirty-eight million, two hundred fifteen thousand, thirty".
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