Base | Representation |
---|---|
bin | 1110001001101110101… |
… | …1110011110100111100 |
3 | 212020120011012212112000 |
4 | 3202123223303310330 |
5 | 12440412302342112 |
6 | 303405322142300 |
7 | 23364663635364 |
oct | 3423353636474 |
9 | 766504185460 |
10 | 243130121532 |
11 | 94124684941 |
12 | 3b153951990 |
13 | 19c08a14b4c |
14 | baa62879a4 |
15 | 64ceb547dc |
hex | 389baf3d3c |
243130121532 has 24 divisors (see below), whose sum is σ = 630337352400. Its totient is φ = 81043373808.
The previous prime is 243130121513. The next prime is 243130121543. The reversal of 243130121532 is 235121031342.
243130121532 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 3 + 0 + 121 + 532 = 666.
243130121532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2431301215322 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 243130121496 and 243130121505.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125602307 + ... + 1125602522.
It is an arithmetic number, because the mean of its divisors is an integer number (26264056350).
Almost surely, 2243130121532 is an apocalyptic number.
It is an amenable number.
243130121532 is an abundant number, since it is smaller than the sum of its proper divisors (387207230868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243130121532 is a wasteful number, since it uses less digits than its factorization.
243130121532 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2251204842 (or 2251204834 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
Adding to 243130121532 its reverse (235121031342), we get a palindrome (478251152874).
The spelling of 243130121532 in words is "two hundred forty-three billion, one hundred thirty million, one hundred twenty-one thousand, five hundred thirty-two".
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