Base | Representation |
---|---|
bin | 10110110001111010… |
… | …01100010011001000 |
3 | 1011120022121222022200 |
4 | 23120331030103020 |
5 | 200021320320113 |
6 | 5341320120200 |
7 | 612032022132 |
oct | 133075142310 |
9 | 34508558280 |
10 | 12229854408 |
11 | 52064856a2 |
12 | 2453906060 |
13 | 11cb972755 |
14 | 840372052 |
15 | 4b8a25873 |
hex | 2d8f4c4c8 |
12229854408 has 36 divisors (see below), whose sum is σ = 33125063985. Its totient is φ = 4076305344.
The previous prime is 12229854407. The next prime is 12229854409. The reversal of 12229854408 is 80445892221.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
12229854408 is a `hidden beast` number, since 12 + 2 + 2 + 98 + 544 + 0 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (12229854407) and next prime (12229854409).
It can be written as a sum of positive squares in 2 ways, for example, as 12038917284 + 190937124 = 109722^2 + 13818^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=78198.
It is not an unprimeable number, because it can be changed into a prime (12229854401) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 931860 + ... + 944892.
Almost surely, 212229854408 is an apocalyptic number.
12229854408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12229854408 is an abundant number, since it is smaller than the sum of its proper divisors (20895209577).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12229854408 is an frugal number, since it uses more digits than its factorization.
12229854408 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26078 (or 13038 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 12229854408 in words is "twelve billion, two hundred twenty-nine million, eight hundred fifty-four thousand, four hundred eight".
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