Base | Representation |
---|---|
bin | 111000101100111010… |
… | …1001001101111100010 |
3 | 102122022002120100202202 |
4 | 1301121311021233202 |
5 | 3443334121040200 |
6 | 131534424013202 |
7 | 11540323352351 |
oct | 1613165115742 |
9 | 378262510682 |
10 | 121766190050 |
11 | 4770592691a |
12 | 1b723301202 |
13 | b63709a23b |
14 | 5c71b3b998 |
15 | 327a0811d5 |
hex | 1c59d49be2 |
121766190050 has 54 divisors (see below), whose sum is σ = 230543824329. Its totient is φ = 47848790400.
The previous prime is 121766190001. The next prime is 121766190067. The reversal of 121766190050 is 50091667121.
It can be written as a sum of positive squares in 14 ways, for example, as 11615881729 + 110150308321 = 107777^2 + 331889^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=246745.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 121766189986 and 121766190013.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 150514046 + ... + 150514854.
Almost surely, 2121766190050 is an apocalyptic number.
121766190050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121766190050 is a deficient number, since it is larger than the sum of its proper divisors (108777634279).
121766190050 is an frugal number, since it uses more digits than its factorization.
121766190050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1752 (or 877 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 38.
The spelling of 121766190050 in words is "one hundred twenty-one billion, seven hundred sixty-six million, one hundred ninety thousand, fifty".
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