Base | Representation |
---|---|
bin | 10110101110101000… |
… | …01000001000010111 |
3 | 1011111101210200112110 |
4 | 23113110020020113 |
5 | 144442242442330 |
6 | 5334453522103 |
7 | 611245641162 |
oct | 132724101027 |
9 | 34441720473 |
10 | 12202312215 |
11 | 51a1983855 |
12 | 2446643333 |
13 | 11c604b3b2 |
14 | 83a842ad9 |
15 | 4b63d4db0 |
hex | 2d7508217 |
12202312215 has 16 divisors (see below), whose sum is σ = 19556637408. Its totient is φ = 6496920576.
The previous prime is 12202312181. The next prime is 12202312267. The reversal of 12202312215 is 51221320221.
It is not a de Polignac number, because 12202312215 - 218 = 12202050071 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12202312191 and 12202312200.
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, 677014 + ... + 694803.
It is an arithmetic number, because the mean of its divisors is an integer number (1222289838).
Almost surely, 212202312215 is an apocalyptic number.
12202312215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12202312215 is a deficient number, since it is larger than the sum of its proper divisors (7354325193).
12202312215 is a wasteful number, since it uses less digits than its factorization.
12202312215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1372418.
The product of its (nonzero) digits is 480, while the sum is 21.
Adding to 12202312215 its reverse (51221320221), we get a palindrome (63423632436).
The spelling of 12202312215 in words is "twelve billion, two hundred two million, three hundred twelve thousand, two hundred fifteen".
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