Base | Representation |
---|---|
bin | 1100100001110010110… |
… | …1011010101010000000 |
3 | 202120112202021111110122 |
4 | 3020130231122222000 |
5 | 12011242342020022 |
6 | 242513022315412 |
7 | 21356413043105 |
oct | 3103455325200 |
9 | 676482244418 |
10 | 215230032512 |
11 | 83307819030 |
12 | 35868128b68 |
13 | 173b0709231 |
14 | a5baaa4aac |
15 | 58ea576742 |
hex | 321cb5aa80 |
215230032512 has 64 divisors (see below), whose sum is σ = 492377378400. Its totient is φ = 92682777600.
The previous prime is 215230032503. The next prime is 215230032541.
It is a happy number.
215230032512 is nontrivially palindromic in base 10.
It is a tau number, because it is divible by the number of its divisors (64).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3995939 + ... + 4049442.
Almost surely, 2215230032512 is an apocalyptic number.
215230032512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
215230032512 is an abundant number, since it is smaller than the sum of its proper divisors (277147345888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215230032512 is a wasteful number, since it uses less digits than its factorization.
215230032512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8045425 (or 8045413 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 26.
It can be divided in two parts, 2152300 and 32512, that added together give a palindrome (2184812).
The spelling of 215230032512 in words is "two hundred fifteen billion, two hundred thirty million, thirty-two thousand, five hundred twelve".
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