Base | Representation |
---|---|
bin | 111000101100011110… |
… | …1001110111001101100 |
3 | 102122021001222121111021 |
4 | 1301120331032321230 |
5 | 3443321342443431 |
6 | 131533141503524 |
7 | 11540054640055 |
oct | 1613075167154 |
9 | 378231877437 |
10 | 121751531116 |
11 | 476a86243a6 |
12 | 1b71a411ba4 |
13 | b634036c07 |
14 | 5c6dc0372c |
15 | 3278b37b11 |
hex | 1c58f4ee6c |
121751531116 has 12 divisors (see below), whose sum is σ = 215019906640. Its totient is φ = 60317272080.
The previous prime is 121751531101. The next prime is 121751531117. The reversal of 121751531116 is 611135157121.
It is not an unprimeable number, because it can be changed into a prime (121751531117) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139622880 + ... + 139623751.
Almost surely, 2121751531116 is an apocalyptic number.
It is an amenable number.
121751531116 is a deficient number, since it is larger than the sum of its proper divisors (93268375524).
121751531116 is a wasteful number, since it uses less digits than its factorization.
121751531116 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 279246744 (or 279246742 counting only the distinct ones).
The product of its digits is 6300, while the sum is 34.
Adding to 121751531116 its reverse (611135157121), we get a palindrome (732886688237).
The spelling of 121751531116 in words is "one hundred twenty-one billion, seven hundred fifty-one million, five hundred thirty-one thousand, one hundred sixteen".
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