Base | Representation |
---|---|
bin | 111100111000101… |
… | …001011110101000 |
3 | 2122012002201010202 |
4 | 330320221132220 |
5 | 4042444423140 |
6 | 245205531332 |
7 | 34212314213 |
oct | 7470513650 |
9 | 2565081122 |
10 | 1021482920 |
11 | 484667267 |
12 | 246113b48 |
13 | 13381c583 |
14 | 9994077a |
15 | 5ea26915 |
hex | 3ce297a8 |
1021482920 has 32 divisors (see below), whose sum is σ = 2309904000. Its totient is φ = 406536768.
The previous prime is 1021482911. The next prime is 1021482937. The reversal of 1021482920 is 292841201.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56204 + ... + 72123.
It is an arithmetic number, because the mean of its divisors is an integer number (72184500).
Almost surely, 21021482920 is an apocalyptic number.
1021482920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1021482920 is an abundant number, since it is smaller than the sum of its proper divisors (1288421080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1021482920 is a wasteful number, since it uses less digits than its factorization.
1021482920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128537 (or 128533 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 29.
The square root of 1021482920 is about 31960.6464265040. The cubic root of 1021482920 is about 1007.1102971838.
The spelling of 1021482920 in words is "one billion, twenty-one million, four hundred eighty-two thousand, nine hundred twenty".
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