Base | Representation |
---|---|
bin | 1110100000100… |
… | …00001010111111 |
3 | 22111000001110111 |
4 | 13100100022333 |
5 | 222123413210 |
6 | 20024250451 |
7 | 3005304400 |
oct | 720201277 |
9 | 274001414 |
10 | 121701055 |
11 | 62773893 |
12 | 34910a27 |
13 | 1c2a1278 |
14 | 1223d9a7 |
15 | aa3e88a |
hex | 74102bf |
121701055 has 24 divisors (see below), whose sum is σ = 170529408. Its totient is φ = 83135808.
The previous prime is 121701053. The next prime is 121701067. The reversal of 121701055 is 550107121.
It is not a de Polignac number, because 121701055 - 21 = 121701053 is a prime.
It is a super-2 number, since 2×1217010552 = 29622293576226050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121701053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76882 + ... + 78448.
It is an arithmetic number, because the mean of its divisors is an integer number (7105392).
Almost surely, 2121701055 is an apocalyptic number.
121701055 is a deficient number, since it is larger than the sum of its proper divisors (48828353).
121701055 is a wasteful number, since it uses less digits than its factorization.
121701055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1903 (or 1896 counting only the distinct ones).
The product of its (nonzero) digits is 350, while the sum is 22.
The square root of 121701055 is about 11031.8201127466. The cubic root of 121701055 is about 495.5621338918.
Adding to 121701055 its reverse (550107121), we get a palindrome (671808176).
It can be divided in two parts, 12170 and 1055, that added together give a square (13225 = 1152).
The spelling of 121701055 in words is "one hundred twenty-one million, seven hundred one thousand, fifty-five".
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