Base | Representation |
---|---|
bin | 11011100101110… |
… | …11000101100110 |
3 | 121010112000212110 |
4 | 31302323011212 |
5 | 433222444110 |
6 | 34544501450 |
7 | 5510214114 |
oct | 1562730546 |
9 | 533460773 |
10 | 231453030 |
11 | 1097160a6 |
12 | 6561a886 |
13 | 38c4a773 |
14 | 22a4cab4 |
15 | 154bda20 |
hex | dcbb166 |
231453030 has 16 divisors (see below), whose sum is σ = 555487344. Its totient is φ = 61720800.
The previous prime is 231453029. The next prime is 231453043. The reversal of 231453030 is 30354132.
It is a junction number, because it is equal to n+sod(n) for n = 231452988 and 231453006.
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, 3857521 + ... + 3857580.
It is an arithmetic number, because the mean of its divisors is an integer number (34717959).
Almost surely, 2231453030 is an apocalyptic number.
231453030 is an abundant number, since it is smaller than the sum of its proper divisors (324034314).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231453030 is a wasteful number, since it uses less digits than its factorization.
231453030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7715111.
The product of its (nonzero) digits is 1080, while the sum is 21.
The square root of 231453030 is about 15213.5804464301. The cubic root of 231453030 is about 613.9800928657.
The spelling of 231453030 in words is "two hundred thirty-one million, four hundred fifty-three thousand, thirty".
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