Base | Representation |
---|---|
bin | 1100100001011001111… |
… | …0000101111111101110 |
3 | 202120021110022012101120 |
4 | 3020112132011333232 |
5 | 12011034042234210 |
6 | 242454402521410 |
7 | 21354002216262 |
oct | 3102636057756 |
9 | 676243265346 |
10 | 215125352430 |
11 | 8326372036a |
12 | 35839066266 |
13 | 17394b17461 |
14 | a5aac160a2 |
15 | 58e129a270 |
hex | 3216785fee |
215125352430 has 32 divisors (see below), whose sum is σ = 543474576000. Its totient is φ = 54347457312.
The previous prime is 215125352423. The next prime is 215125352443. The reversal of 215125352430 is 34253521512.
215125352430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 215125352391 and 215125352400.
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, 188705880 + ... + 188707019.
It is an arithmetic number, because the mean of its divisors is an integer number (16983580500).
Almost surely, 2215125352430 is an apocalyptic number.
215125352430 is an abundant number, since it is smaller than the sum of its proper divisors (328349223570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215125352430 is a wasteful number, since it uses less digits than its factorization.
215125352430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 377412928.
The product of its (nonzero) digits is 36000, while the sum is 33.
Adding to 215125352430 its reverse (34253521512), we get a palindrome (249378873942).
The spelling of 215125352430 in words is "two hundred fifteen billion, one hundred twenty-five million, three hundred fifty-two thousand, four hundred thirty".
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