Base | Representation |
---|---|
bin | 11011011011101… |
… | …00011101100100 |
3 | 121001000001200011 |
4 | 31231310131210 |
5 | 432402141142 |
6 | 34500100004 |
7 | 5462642500 |
oct | 1555643544 |
9 | 531001604 |
10 | 230115172 |
11 | 108991a31 |
12 | 65094604 |
13 | 3889c831 |
14 | 227c1300 |
15 | 15307417 |
hex | db74764 |
230115172 has 36 divisors (see below), whose sum is σ = 469996464. Its totient is φ = 98295120.
The previous prime is 230115169. The next prime is 230115181. The reversal of 230115172 is 271511032.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63103 + ... + 66649.
Almost surely, 2230115172 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 230115172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234998232).
230115172 is an abundant number, since it is smaller than the sum of its proper divisors (239881292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230115172 is a wasteful number, since it uses less digits than its factorization.
230115172 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3896 (or 3887 counting only the distinct ones).
The product of its (nonzero) digits is 420, while the sum is 22.
The square root of 230115172 is about 15169.5475212677. The cubic root of 230115172 is about 612.7948186145.
The spelling of 230115172 in words is "two hundred thirty million, one hundred fifteen thousand, one hundred seventy-two".
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