Base | Representation |
---|---|
bin | 1110011111111… |
… | …10010100100010 |
3 | 22110212100011110 |
4 | 13033332110202 |
5 | 222114043223 |
6 | 20022524150 |
7 | 3004551255 |
oct | 717762442 |
9 | 273770143 |
10 | 121627938 |
11 | 62723963 |
12 | 34896656 |
13 | 1c276bc3 |
14 | 1222109c |
15 | aa27d93 |
hex | 73fe522 |
121627938 has 8 divisors (see below), whose sum is σ = 243255888. Its totient is φ = 40542644.
The previous prime is 121627931. The next prime is 121627999. The reversal of 121627938 is 839726121.
It is a sphenic number, since it is the product of 3 distinct primes.
121627938 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 121627896 and 121627905.
It is not an unprimeable number, because it can be changed into a prime (121627931) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10135656 + ... + 10135667.
It is an arithmetic number, because the mean of its divisors is an integer number (30406986).
Almost surely, 2121627938 is an apocalyptic number.
121627938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121627938 is a wasteful number, since it uses less digits than its factorization.
121627938 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20271328.
The product of its digits is 36288, while the sum is 39.
The square root of 121627938 is about 11028.5057011365. The cubic root of 121627938 is about 495.4628707826.
It can be divided in two parts, 12162 and 7938, that added together give a triangular number (20100 = T200).
The spelling of 121627938 in words is "one hundred twenty-one million, six hundred twenty-seven thousand, nine hundred thirty-eight".
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