Base | Representation |
---|---|
bin | 1110100111111… |
… | …11001000001100 |
3 | 22112211210002001 |
4 | 13103333020030 |
5 | 222401223240 |
6 | 20101242044 |
7 | 3016522054 |
oct | 723771014 |
9 | 275753061 |
10 | 122679820 |
11 | 6328218a |
12 | 35103324 |
13 | 1c554913 |
14 | 12416564 |
15 | ab8489a |
hex | 74ff20c |
122679820 has 24 divisors (see below), whose sum is σ = 272782944. Its totient is φ = 46185216.
The previous prime is 122679793. The next prime is 122679829. The reversal of 122679820 is 28976221.
It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 122679820.
It is not an unprimeable number, because it can be changed into a prime (122679829) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180072 + ... + 180751.
It is an arithmetic number, because the mean of its divisors is an integer number (11365956).
Almost surely, 2122679820 is an apocalyptic number.
122679820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
122679820 is an abundant number, since it is smaller than the sum of its proper divisors (150103124).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122679820 is a wasteful number, since it uses less digits than its factorization.
122679820 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 360849 (or 360847 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 37.
The square root of 122679820 is about 11076.0922711938. The cubic root of 122679820 is about 496.8870864246.
The spelling of 122679820 in words is "one hundred twenty-two million, six hundred seventy-nine thousand, eight hundred twenty".
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