Base | Representation |
---|---|
bin | 111000100010111001… |
… | …1100100010000001110 |
3 | 102121102200101211021001 |
4 | 1301011303210100032 |
5 | 3442142114330110 |
6 | 131441223130514 |
7 | 11526103632154 |
oct | 1610563442016 |
9 | 377380354231 |
10 | 121430230030 |
11 | 4755322110a |
12 | 1b64a8a3a3a |
13 | b5b25bb725 |
14 | 5c3d2873d4 |
15 | 325a81c63a |
hex | 1c45ce440e |
121430230030 has 16 divisors (see below), whose sum is σ = 221652928224. Its totient is φ = 47887977760.
The previous prime is 121430230013. The next prime is 121430230043. The reversal of 121430230030 is 30032034121.
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, 85513537 + ... + 85514956.
It is an arithmetic number, because the mean of its divisors is an integer number (13853308014).
Almost surely, 2121430230030 is an apocalyptic number.
121430230030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121430230030 is a deficient number, since it is larger than the sum of its proper divisors (100222698194).
121430230030 is a wasteful number, since it uses less digits than its factorization.
121430230030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171028571.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 121430230030 its reverse (30032034121), we get a palindrome (151462264151).
The spelling of 121430230030 in words is "one hundred twenty-one billion, four hundred thirty million, two hundred thirty thousand, thirty".
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