Base | Representation |
---|---|
bin | 1110101101011… |
… | …11001111110001 |
3 | 22121012102121212 |
4 | 13112233033301 |
5 | 223042314301 |
6 | 20124525505 |
7 | 3025615160 |
oct | 726571761 |
9 | 277172555 |
10 | 123401201 |
11 | 63725170 |
12 | 353b0895 |
13 | 1c748081 |
14 | 125633d7 |
15 | ac784bb |
hex | 75af3f1 |
123401201 has 16 divisors (see below), whose sum is σ = 155074560. Its totient is φ = 95392080.
The previous prime is 123401183. The next prime is 123401209. The reversal of 123401201 is 102104321.
It is not a de Polignac number, because 123401201 - 210 = 123400177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123401209) 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, 3470 + ... + 16088.
It is an arithmetic number, because the mean of its divisors is an integer number (9692160).
Almost surely, 2123401201 is an apocalyptic number.
123401201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
123401201 is a deficient number, since it is larger than the sum of its proper divisors (31673359).
123401201 is a wasteful number, since it uses less digits than its factorization.
123401201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12764.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 123401201 is about 11108.6093189022. The cubic root of 123401201 is about 497.8591143002.
Adding to 123401201 its reverse (102104321), we get a palindrome (225505522).
The spelling of 123401201 in words is "one hundred twenty-three million, four hundred one thousand, two hundred one".
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