Base | Representation |
---|---|
bin | 1100100010000… |
… | …00001011111110 |
3 | 21022210200020020 |
4 | 12101000023332 |
5 | 203402324020 |
6 | 14233033010 |
7 | 2414336535 |
oct | 621001376 |
9 | 238720206 |
10 | 105120510 |
11 | 54379660 |
12 | 2b255766 |
13 | 18a173b1 |
14 | dd6531c |
15 | 9366c40 |
hex | 64402fe |
105120510 has 64 divisors (see below), whose sum is σ = 277758720. Its totient is φ = 25249280.
The previous prime is 105120487. The next prime is 105120523. The reversal of 105120510 is 15021501.
It is a super-3 number, since 3×1051205103 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 105120510.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35881 + ... + 38699.
It is an arithmetic number, because the mean of its divisors is an integer number (4339980).
Almost surely, 2105120510 is an apocalyptic number.
105120510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 105120510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138879360).
105120510 is an abundant number, since it is smaller than the sum of its proper divisors (172638210).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
105120510 is a wasteful number, since it uses less digits than its factorization.
105120510 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2953.
The product of its (nonzero) digits is 50, while the sum is 15.
The square root of 105120510 is about 10252.8293655947. The cubic root of 105120510 is about 471.9498145196.
Subtracting from 105120510 its reverse (15021501), we obtain a palindrome (90099009).
The spelling of 105120510 in words is "one hundred five million, one hundred twenty thousand, five hundred ten".
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