Base | Representation |
---|---|
bin | 111100001100111… |
… | …011011001101000 |
3 | 2121101112102200221 |
4 | 330030323121220 |
5 | 4032031200432 |
6 | 244120135424 |
7 | 34013021350 |
oct | 7414733150 |
9 | 2541472627 |
10 | 1010021992 |
11 | 479149521 |
12 | 242307574 |
13 | 131338a65 |
14 | 981d9b60 |
15 | 5da10b97 |
hex | 3c33b668 |
1010021992 has 64 divisors (see below), whose sum is σ = 2190464640. Its totient is φ = 427680000.
The previous prime is 1010021989. The next prime is 1010021993. The reversal of 1010021992 is 2991200101.
It is not an unprimeable number, because it can be changed into a prime (1010021993) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543938 + ... + 2544334.
It is an arithmetic number, because the mean of its divisors is an integer number (34226010).
Almost surely, 21010021992 is an apocalyptic number.
It is an amenable number.
1010021992 is an abundant number, since it is smaller than the sum of its proper divisors (1180442648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1010021992 is a wasteful number, since it uses less digits than its factorization.
1010021992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 842 (or 838 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 25.
The square root of 1010021992 is about 31780.8431606211. The cubic root of 1010021992 is about 1003.3295656885.
The spelling of 1010021992 in words is "one billion, ten million, twenty-one thousand, nine hundred ninety-two".
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