Base | Representation |
---|---|
bin | 10101011011000101… |
… | …110111001111011001 |
3 | 2012101010101120011011 |
4 | 111123011313033121 |
5 | 334102243200441 |
6 | 14322324133521 |
7 | 1443016060561 |
oct | 253305671731 |
9 | 65333346134 |
10 | 23003100121 |
11 | 9834717651 |
12 | 455b8372a1 |
13 | 2227906261 |
14 | 1183097da1 |
15 | 8e9723581 |
hex | 55b1773d9 |
23003100121 has 12 divisors (see below), whose sum is σ = 24273212652. Its totient is φ = 21790793024.
The previous prime is 23003100091. The next prime is 23003100137. The reversal of 23003100121 is 12100130032.
It can be written as a sum of positive squares in 6 ways, for example, as 340808521 + 22662291600 = 18461^2 + 150540^2 .
It is not a de Polignac number, because 23003100121 - 217 = 23002969049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23003107121) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213466 + ... + 302611.
It is an arithmetic number, because the mean of its divisors is an integer number (2022767721).
Almost surely, 223003100121 is an apocalyptic number.
It is an amenable number.
23003100121 is a deficient number, since it is larger than the sum of its proper divisors (1270112531).
23003100121 is an equidigital number, since it uses as much as digits as its factorization.
23003100121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 516188 (or 516159 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 23003100121 its reverse (12100130032), we get a palindrome (35103230153).
The spelling of 23003100121 in words is "twenty-three billion, three million, one hundred thousand, one hundred twenty-one".
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