Base | Representation |
---|---|
bin | 100100101010010… |
… | …0111101111011110 |
3 | 10011201201201011202 |
4 | 1021110213233132 |
5 | 10004404024210 |
6 | 322022115502 |
7 | 42325016036 |
oct | 11124475736 |
9 | 3151651152 |
10 | 1230142430 |
11 | 581424240 |
12 | 2a3b7bb92 |
13 | 167b1923a |
14 | b95388c6 |
15 | 72ee19a5 |
hex | 49527bde |
1230142430 has 32 divisors (see below), whose sum is σ = 2417402880. Its totient is φ = 446981920.
The previous prime is 1230142399. The next prime is 1230142439. The reversal of 1230142430 is 342410321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230142439) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173291 + ... + 180249.
It is an arithmetic number, because the mean of its divisors is an integer number (75543840).
Almost surely, 21230142430 is an apocalyptic number.
1230142430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230142430 is a deficient number, since it is larger than the sum of its proper divisors (1187260450).
1230142430 is a wasteful number, since it uses less digits than its factorization.
1230142430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8584.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 1230142430 is about 35073.3863491965. The cubic root of 1230142430 is about 1071.4826245661.
Adding to 1230142430 its reverse (342410321), we get a palindrome (1572552751).
The spelling of 1230142430 in words is "one billion, two hundred thirty million, one hundred forty-two thousand, four hundred thirty".
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