Base | Representation |
---|---|
bin | 10010101111011011… |
… | …011000011101011101 |
3 | 1220221102002100220210 |
4 | 102233123120131131 |
5 | 312203000410221 |
6 | 13124443003033 |
7 | 1311445121406 |
oct | 225733303535 |
9 | 56842070823 |
10 | 20123060061 |
11 | 8596a40955 |
12 | 3a97209479 |
13 | 1b89033640 |
14 | d8c79a9ad |
15 | 7cb978276 |
hex | 4af6d875d |
20123060061 has 32 divisors (see below), whose sum is σ = 29439970560. Its totient is φ = 12151448064.
The previous prime is 20123060053. The next prime is 20123060071. The reversal of 20123060061 is 16006032102.
It is a happy number.
It is not a de Polignac number, because 20123060061 - 23 = 20123060053 is a prime.
It is a super-3 number, since 3×201230600613 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20123060071) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542920 + ... + 578798.
It is an arithmetic number, because the mean of its divisors is an integer number (919999080).
Almost surely, 220123060061 is an apocalyptic number.
It is an amenable number.
20123060061 is a deficient number, since it is larger than the sum of its proper divisors (9316910499).
20123060061 is a wasteful number, since it uses less digits than its factorization.
20123060061 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36165.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 20123060061 its reverse (16006032102), we get a palindrome (36129092163).
The spelling of 20123060061 in words is "twenty billion, one hundred twenty-three million, sixty thousand, sixty-one".
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