Base | Representation |
---|---|
bin | 1011010010010000110110… |
… | …0101011000101100010100 |
3 | 1121221020012220221111002010 |
4 | 2310210031211120230110 |
5 | 3111244334414004140 |
6 | 42220200203144220 |
7 | 2420322301225404 |
oct | 264441545305424 |
9 | 47836186844063 |
10 | 12408388422420 |
11 | 3a54405862111 |
12 | 14849b4215070 |
13 | 6c014bb8a993 |
14 | 30c7d7c78804 |
15 | 167b85e8c880 |
hex | b490d958b14 |
12408388422420 has 48 divisors (see below), whose sum is σ = 34751939620608. Its totient is φ = 3308098623360.
The previous prime is 12408388422407. The next prime is 12408388422481. The reversal of 12408388422420 is 2422488380421.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 12408388422420.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24906159 + ... + 25399478.
It is an arithmetic number, because the mean of its divisors is an integer number (723998742096).
Almost surely, 212408388422420 is an apocalyptic number.
12408388422420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12408388422420 is an abundant number, since it is smaller than the sum of its proper divisors (22343551198188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12408388422420 is a wasteful number, since it uses less digits than its factorization.
12408388422420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50309760 (or 50309758 counting only the distinct ones).
The product of its (nonzero) digits is 1572864, while the sum is 48.
The spelling of 12408388422420 in words is "twelve trillion, four hundred eight billion, three hundred eighty-eight million, four hundred twenty-two thousand, four hundred twenty".
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