Base | Representation |
---|---|
bin | 10010001110011111000… |
… | …111110010100001011110 |
3 | 11102201221020022200002210 |
4 | 102032133013302201132 |
5 | 131010112301234210 |
6 | 2355220511101250 |
7 | 156330146465301 |
oct | 22163707624136 |
9 | 4381836280083 |
10 | 1252505102430 |
11 | 44320352872a |
12 | 1828b1511826 |
13 | 9115935245a |
14 | 4489b836b38 |
15 | 228a9467e20 |
hex | 1239f1f285e |
1252505102430 has 32 divisors (see below), whose sum is σ = 3006613448064. Its totient is φ = 333934560416.
The previous prime is 1252505102413. The next prime is 1252505102467. The reversal of 1252505102430 is 342015052521.
It is a super-2 number, since 2×12525051024302 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4022424 + ... + 4322603.
It is an arithmetic number, because the mean of its divisors is an integer number (93956670252).
Almost surely, 21252505102430 is an apocalyptic number.
1252505102430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1252505102430 is an abundant number, since it is smaller than the sum of its proper divisors (1754108345634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1252505102430 is a wasteful number, since it uses less digits than its factorization.
1252505102430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8350040.
The product of its (nonzero) digits is 12000, while the sum is 30.
The spelling of 1252505102430 in words is "one trillion, two hundred fifty-two billion, five hundred five million, one hundred two thousand, four hundred thirty".
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