Base | Representation |
---|---|
bin | 1110100011101… |
… | …10110010011010 |
3 | 22111210102000201 |
4 | 13101312302122 |
5 | 222230340440 |
6 | 20041252414 |
7 | 3012004660 |
oct | 721666232 |
9 | 274712021 |
10 | 122121370 |
11 | 62a30658 |
12 | 34a9410a |
13 | 1c3ba687 |
14 | 1230cc30 |
15 | aac419a |
hex | 7476c9a |
122121370 has 64 divisors (see below), whose sum is σ = 272595456. Its totient is φ = 38430720.
The previous prime is 122121361. The next prime is 122121371. The reversal of 122121370 is 73121221.
It is not an unprimeable number, because it can be changed into a prime (122121371) 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, 47539 + ... + 50041.
It is an arithmetic number, because the mean of its divisors is an integer number (4259304).
Almost surely, 2122121370 is an apocalyptic number.
122121370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
122121370 is an abundant number, since it is smaller than the sum of its proper divisors (150474086).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122121370 is a wasteful number, since it uses less digits than its factorization.
122121370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2575.
The product of its (nonzero) digits is 168, while the sum is 19.
The square root of 122121370 is about 11050.8538131676. The cubic root of 122121370 is about 496.1319806820.
Adding to 122121370 its reverse (73121221), we get a palindrome (195242591).
The spelling of 122121370 in words is "one hundred twenty-two million, one hundred twenty-one thousand, three hundred seventy".
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