Base | Representation |
---|---|
bin | 111011001000010… |
… | …0111111000001011 |
3 | 12010021101011011220 |
4 | 1312100213320023 |
5 | 13030410203011 |
6 | 524513253123 |
7 | 100111211052 |
oct | 16620477013 |
9 | 5107334156 |
10 | 1984069131 |
11 | 928a56560 |
12 | 4745641a3 |
13 | 25808a105 |
14 | 14b70d399 |
15 | b92b7506 |
hex | 76427e0b |
1984069131 has 32 divisors (see below), whose sum is σ = 2916442368. Its totient is φ = 1189818240.
The previous prime is 1984069111. The next prime is 1984069141. The reversal of 1984069131 is 1319604891.
1984069131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1984069131 - 26 = 1984069067 is a prime.
It is a super-2 number, since 2×19840691312 = 7873060633174190322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1984069111) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1517380 + ... + 1518686.
It is an arithmetic number, because the mean of its divisors is an integer number (91138824).
Almost surely, 21984069131 is an apocalyptic number.
1984069131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1984069131 is a deficient number, since it is larger than the sum of its proper divisors (932373237).
1984069131 is a wasteful number, since it uses less digits than its factorization.
1984069131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1771.
The product of its (nonzero) digits is 46656, while the sum is 42.
The square root of 1984069131 is about 44542.8909142637. The cubic root of 1984069131 is about 1256.5668553291.
The spelling of 1984069131 in words is "one billion, nine hundred eighty-four million, sixty-nine thousand, one hundred thirty-one".
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