Base | Representation |
---|---|
bin | 110000000111001… |
… | …011101011101111 |
3 | 2002020212110110110 |
4 | 300013023223233 |
5 | 3123120023411 |
6 | 212032511103 |
7 | 26000665242 |
oct | 6007135357 |
9 | 2066773413 |
10 | 807189231 |
11 | 384701242 |
12 | 1a63ab493 |
13 | cb2cc284 |
14 | 792bb259 |
15 | 4ace72a6 |
hex | 301cbaef |
807189231 has 8 divisors (see below), whose sum is σ = 1076532480. Its totient is φ = 537986072.
The previous prime is 807189221. The next prime is 807189241. The reversal of 807189231 is 132981708.
It is an interprime number because it is at equal distance from previous prime (807189221) and next prime (807189241).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 807189231 - 26 = 807189167 is a prime.
It is a super-2 number, since 2×8071892312 = 1303108909284742722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 807189231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (807189221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20745 + ... + 45218.
It is an arithmetic number, because the mean of its divisors is an integer number (134566560).
Almost surely, 2807189231 is an apocalyptic number.
807189231 is a deficient number, since it is larger than the sum of its proper divisors (269343249).
807189231 is a wasteful number, since it uses less digits than its factorization.
807189231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70045.
The product of its (nonzero) digits is 24192, while the sum is 39.
The square root of 807189231 is about 28411.0758508016. The cubic root of 807189231 is about 931.0902660372.
The spelling of 807189231 in words is "eight hundred seven million, one hundred eighty-nine thousand, two hundred thirty-one".
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