Base | Representation |
---|---|
bin | 11011011011001… |
… | …01101011110000 |
3 | 121000212222122020 |
4 | 31231211223300 |
5 | 432343222030 |
6 | 34454511440 |
7 | 5462301144 |
oct | 1555455360 |
9 | 530788566 |
10 | 230054640 |
11 | 108950502 |
12 | 65065580 |
13 | 3887b10a |
14 | 227a7224 |
15 | 152e4510 |
hex | db65af0 |
230054640 has 80 divisors (see below), whose sum is σ = 714635808. Its totient is φ = 61221888.
The previous prime is 230054633. The next prime is 230054653. The reversal of 230054640 is 46450032.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 230054640.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209934 + ... + 211026.
Almost surely, 2230054640 is an apocalyptic number.
230054640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
230054640 is an abundant number, since it is smaller than the sum of its proper divisors (484581168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230054640 is a wasteful number, since it uses less digits than its factorization.
230054640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1986 (or 1980 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 24.
The square root of 230054640 is about 15167.5522085800. The cubic root of 230054640 is about 612.7410818289.
The spelling of 230054640 in words is "two hundred thirty million, fifty-four thousand, six hundred forty".
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