Base | Representation |
---|---|
bin | 101110001111… |
… | …111101110100 |
3 | 211210222000210 |
4 | 232033331310 |
5 | 11100432040 |
6 | 1111505420 |
7 | 205023666 |
oct | 56177564 |
9 | 24728023 |
10 | 12124020 |
11 | 6930a57 |
12 | 4088270 |
13 | 268659c |
14 | 1878536 |
15 | 10e7480 |
hex | b8ff74 |
12124020 has 24 divisors (see below), whose sum is σ = 33947424. Its totient is φ = 3233056.
The previous prime is 12123977. The next prime is 12124061. The reversal of 12124020 is 2042121.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 12123987 and 12124005.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100974 + ... + 101093.
It is an arithmetic number, because the mean of its divisors is an integer number (1414476).
Almost surely, 212124020 is an apocalyptic number.
12124020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12124020 is an abundant number, since it is smaller than the sum of its proper divisors (21823404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12124020 is a wasteful number, since it uses less digits than its factorization.
12124020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 202079 (or 202077 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 12124020 is about 3481.9563466534. The cubic root of 12124020 is about 229.7288550183.
Adding to 12124020 its reverse (2042121), we get a palindrome (14166141).
The spelling of 12124020 in words is "twelve million, one hundred twenty-four thousand, twenty".
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