Base | Representation |
---|---|
bin | 111011000010011… |
… | …1000101111011000 |
3 | 12010001120211210120 |
4 | 1312010320233120 |
5 | 13024113224342 |
6 | 524323313240 |
7 | 100043105154 |
oct | 16604705730 |
9 | 5101524716 |
10 | 1980992472 |
11 | 927244a68 |
12 | 47351b820 |
13 | 2575508c4 |
14 | 14b14c064 |
15 | b8daaaec |
hex | 76138bd8 |
1980992472 has 32 divisors (see below), whose sum is σ = 5057856000. Its totient is φ = 646280864.
The previous prime is 1980992467. The next prime is 1980992483. The reversal of 1980992472 is 2742990891.
1980992472 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
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, 876972 + ... + 879227.
It is an arithmetic number, because the mean of its divisors is an integer number (158058000).
Almost surely, 21980992472 is an apocalyptic number.
1980992472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1980992472 is an abundant number, since it is smaller than the sum of its proper divisors (3076863528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1980992472 is a wasteful number, since it uses less digits than its factorization.
1980992472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1756255 (or 1756251 counting only the distinct ones).
The product of its (nonzero) digits is 653184, while the sum is 51.
The square root of 1980992472 is about 44508.3416001989. The cubic root of 1980992472 is about 1255.9170077149.
The spelling of 1980992472 in words is "one billion, nine hundred eighty million, nine hundred ninety-two thousand, four hundred seventy-two".
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