Base | Representation |
---|---|
bin | 1100010000111… |
… | …01001110001110 |
3 | 21011120212000122 |
4 | 12020131032032 |
5 | 202314131032 |
6 | 14113024542 |
7 | 2356316051 |
oct | 610351616 |
9 | 234525018 |
10 | 102880142 |
11 | 53089412 |
12 | 2a555152 |
13 | 18411731 |
14 | d940a98 |
15 | 9073012 |
hex | 621d38e |
102880142 has 4 divisors (see below), whose sum is σ = 154320216. Its totient is φ = 51440070.
The previous prime is 102880121. The next prime is 102880147. The reversal of 102880142 is 241088201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241088201 = 2237 ⋅107773.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102880147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25720034 + ... + 25720037.
It is an arithmetic number, because the mean of its divisors is an integer number (38580054).
Almost surely, 2102880142 is an apocalyptic number.
102880142 is a deficient number, since it is larger than the sum of its proper divisors (51440074).
102880142 is an equidigital number, since it uses as much as digits as its factorization.
102880142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51440073.
The product of its (nonzero) digits is 1024, while the sum is 26.
The square root of 102880142 is about 10142.9848663990. The cubic root of 102880142 is about 468.5729189016.
The spelling of 102880142 in words is "one hundred two million, eight hundred eighty thousand, one hundred forty-two".
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