Base | Representation |
---|---|
bin | 1110101001010000… |
… | …0111001101110100 |
3 | 101010222010122122002 |
4 | 3222110013031310 |
5 | 31022333002410 |
6 | 1450025554432 |
7 | 166263101264 |
oct | 35224071564 |
9 | 11128118562 |
10 | 3931140980 |
11 | 1738032448 |
12 | 918645a18 |
13 | 4a8592330 |
14 | 29414b7a4 |
15 | 1801c27a5 |
hex | ea507374 |
3931140980 has 48 divisors (see below), whose sum is σ = 8896898640. Its totient is φ = 1450441728.
The previous prime is 3931140973. The next prime is 3931140989. The reversal of 3931140980 is 890411393.
It is a happy number.
3931140980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 353665636 + 3577475344 = 18806^2 + 59812^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3931140989) 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, 413642 + ... + 423038.
It is an arithmetic number, because the mean of its divisors is an integer number (185352055).
Almost surely, 23931140980 is an apocalyptic number.
It is an amenable number.
3931140980 is an abundant number, since it is smaller than the sum of its proper divisors (4965757660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3931140980 is a wasteful number, since it uses less digits than its factorization.
3931140980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11028 (or 11026 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 38.
The square root of 3931140980 is about 62698.8116314815. The cubic root of 3931140980 is about 1578.2393703367.
The spelling of 3931140980 in words is "three billion, nine hundred thirty-one million, one hundred forty thousand, nine hundred eighty".
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