Base | Representation |
---|---|
bin | 101111110010111… |
… | …111101111111111 |
3 | 2001212220121112100 |
4 | 233302333233333 |
5 | 3120241204341 |
6 | 211323240143 |
7 | 25605005334 |
oct | 5762775777 |
9 | 2055817470 |
10 | 801897471 |
11 | 381717491 |
12 | 1a4679053 |
13 | ca19875b |
14 | 7870098b |
15 | 4a5ee3b6 |
hex | 2fcbfbff |
801897471 has 12 divisors (see below), whose sum is σ = 1159659072. Its totient is φ = 533969376.
The previous prime is 801897469. The next prime is 801897493. The reversal of 801897471 is 174798108.
801897471 is a `hidden beast` number, since 80 + 18 + 97 + 471 = 666.
It is not a de Polignac number, because 801897471 - 21 = 801897469 is a prime.
It is a super-3 number, since 3×8018974713 (a number of 28 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (801896471) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44271 + ... + 59696.
It is an arithmetic number, because the mean of its divisors is an integer number (96638256).
Almost surely, 2801897471 is an apocalyptic number.
801897471 is a deficient number, since it is larger than the sum of its proper divisors (357761601).
801897471 is a wasteful number, since it uses less digits than its factorization.
801897471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104830 (or 104827 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 45.
The square root of 801897471 is about 28317.7942467276. The cubic root of 801897471 is about 929.0511272406.
The spelling of 801897471 in words is "eight hundred one million, eight hundred ninety-seven thousand, four hundred seventy-one".
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