Base | Representation |
---|---|
bin | 1100001010011… |
… | …01101110101111 |
3 | 21002222200012100 |
4 | 12011031232233 |
5 | 202104432010 |
6 | 14042510143 |
7 | 2346146205 |
oct | 605155657 |
9 | 232880170 |
10 | 102030255 |
11 | 52658928 |
12 | 2a205353 |
13 | 181a4942 |
14 | d79d075 |
15 | 8e562c0 |
hex | 614dbaf |
102030255 has 24 divisors (see below), whose sum is σ = 178577568. Its totient is φ = 53885376.
The previous prime is 102030239. The next prime is 102030259. The reversal of 102030255 is 552030201.
It is a happy number.
It is not a de Polignac number, because 102030255 - 24 = 102030239 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102030259) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6372 + ... + 15641.
It is an arithmetic number, because the mean of its divisors is an integer number (7440732).
Almost surely, 2102030255 is an apocalyptic number.
102030255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
102030255 is a deficient number, since it is larger than the sum of its proper divisors (76547313).
102030255 is a wasteful number, since it uses less digits than its factorization.
102030255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22127 (or 22124 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 102030255 is about 10101.0026730023. The cubic root of 102030255 is about 467.2790647738.
Adding to 102030255 its reverse (552030201), we get a palindrome (654060456).
The spelling of 102030255 in words is "one hundred two million, thirty thousand, two hundred fifty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •