| Base | Representation |
|---|---|
| bin | 111001011000000000… |
| … | …1010010101111011000 |
| 3 | 102210000212111221122000 |
| 4 | 1302300001102233120 |
| 5 | 4004314311310313 |
| 6 | 132334121201000 |
| 7 | 11621212350330 |
| oct | 1626001225730 |
| 9 | 383025457560 |
| 10 | 123212213208 |
| 11 | 4828809a487 |
| 12 | 1ba67630160 |
| 13 | b807840c46 |
| 14 | 5d6bbd00c0 |
| 15 | 3311eb7673 |
| hex | 1cb0052bd8 |
123212213208 has 128 divisors (see below), whose sum is σ = 391610419200. Its totient is φ = 35162042112.
The previous prime is 123212213191. The next prime is 123212213221. The reversal of 123212213208 is 802312212321.
123212213208 is a `hidden beast` number, since 1 + 232 + 1 + 221 + 3 + 208 = 666.
123212213208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1232122132082 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1248241 + ... + 1343327.
It is an arithmetic number, because the mean of its divisors is an integer number (3059456400).
Almost surely, 2123212213208 is an apocalyptic number.
123212213208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 123212213208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195805209600).
123212213208 is an abundant number, since it is smaller than the sum of its proper divisors (268398205992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123212213208 is a wasteful number, since it uses less digits than its factorization.
123212213208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95966 (or 95956 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
Adding to 123212213208 its reverse (802312212321), we get a palindrome (925524425529).
The spelling of 123212213208 in words is "one hundred twenty-three billion, two hundred twelve million, two hundred thirteen thousand, two hundred eight".
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