Base | Representation |
---|---|
bin | 10111001000000100… |
… | …01101111100001110 |
3 | 1012001021100222200001 |
4 | 23210002031330032 |
5 | 200411411034410 |
6 | 5411555554514 |
7 | 616446613663 |
oct | 134402157416 |
9 | 35037328601 |
10 | 12415721230 |
11 | 52a1395140 |
12 | 24a5bbba3a |
13 | 122b31bb13 |
14 | 85ad15a6a |
15 | 4c9edc33a |
hex | 2e408df0e |
12415721230 has 32 divisors (see below), whose sum is σ = 24390354528. Its totient is φ = 4512883200.
The previous prime is 12415721203. The next prime is 12415721243. The reversal of 12415721230 is 3212751421.
It is a super-2 number, since 2×124157212302 (a number of 21 digits) contains 22 as substring.
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, 249210 + ... + 294850.
It is an arithmetic number, because the mean of its divisors is an integer number (762198579).
Almost surely, 212415721230 is an apocalyptic number.
12415721230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12415721230 is a deficient number, since it is larger than the sum of its proper divisors (11974633298).
12415721230 is a wasteful number, since it uses less digits than its factorization.
12415721230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48132.
The product of its (nonzero) digits is 3360, while the sum is 28.
The spelling of 12415721230 in words is "twelve billion, four hundred fifteen million, seven hundred twenty-one thousand, two hundred thirty".
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