| Base | Representation |
|---|---|
| bin | 1000000010001011… |
| … | …0111000011100000 |
| 3 | 12120022001202021200 |
| 4 | 2000202313003200 |
| 5 | 13404043401143 |
| 6 | 553555521200 |
| 7 | 104304661560 |
| oct | 20042670340 |
| 9 | 5508052250 |
| 10 | 2156622048 |
| 11 | a073a2079 |
| 12 | 5022b9200 |
| 13 | 284a54429 |
| 14 | 1665c8da0 |
| 15 | c94ee1d3 |
| hex | 808b70e0 |
2156622048 has 144 divisors (see below), whose sum is σ = 7313918976. Its totient is φ = 589374720.
The previous prime is 2156622047. The next prime is 2156622107. The reversal of 2156622048 is 8402266512.
It is a happy number.
2156622048 is a `hidden beast` number, since 21 + 5 + 6 + 622 + 0 + 4 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2156622047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23113 + ... + 69623.
It is an arithmetic number, because the mean of its divisors is an integer number (50791104).
Almost surely, 22156622048 is an apocalyptic number.
2156622048 is a gapful number since it is divisible by the number (28) 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 2156622048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3656959488).
2156622048 is an abundant number, since it is smaller than the sum of its proper divisors (5157296928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2156622048 is a wasteful number, since it uses less digits than its factorization.
2156622048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46557 (or 46546 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The square root of 2156622048 is about 46439.4449579234. Note that the first 3 decimals coincide. The cubic root of 2156622048 is about 1291.9866127238.
The spelling of 2156622048 in words is "two billion, one hundred fifty-six million, six hundred twenty-two thousand, forty-eight".
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