Base | Representation |
---|---|
bin | 110101110010101… |
… | …1011011111001111 |
3 | 11122210101011220001 |
4 | 1223211123133033 |
5 | 12144033132111 |
6 | 455034505131 |
7 | 62505011650 |
oct | 15345333717 |
9 | 4583334801 |
10 | 1804974031 |
11 | 846951783 |
12 | 4245951a7 |
13 | 229c42093 |
14 | 131a0d527 |
15 | a86dc1c1 |
hex | 6b95b7cf |
1804974031 has 16 divisors (see below), whose sum is σ = 2185310016. Its totient is φ = 1455353856.
The previous prime is 1804974011. The next prime is 1804974043. The reversal of 1804974031 is 1304794081.
It is a cyclic number.
It is not a de Polignac number, because 1804974031 - 215 = 1804941263 is a prime.
It is a super-2 number, since 2×18049740312 = 6515862505168777922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1804974011) 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, 385255 + ... + 389911.
It is an arithmetic number, because the mean of its divisors is an integer number (136581876).
Almost surely, 21804974031 is an apocalyptic number.
1804974031 is a deficient number, since it is larger than the sum of its proper divisors (380335985).
1804974031 is a wasteful number, since it uses less digits than its factorization.
1804974031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7938.
The product of its (nonzero) digits is 24192, while the sum is 37.
The square root of 1804974031 is about 42484.9859479793. The cubic root of 1804974031 is about 1217.5598523507.
It can be divided in two parts, 180497 and 4031, that added together give a triangular number (184528 = T607).
The spelling of 1804974031 in words is "one billion, eight hundred four million, nine hundred seventy-four thousand, thirty-one".
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