Base | Representation |
---|---|
bin | 101111110000011… |
… | …100110100011111 |
3 | 2001211122201002022 |
4 | 233300130310133 |
5 | 3120103330421 |
6 | 211301050355 |
7 | 25566225563 |
oct | 5760346437 |
9 | 2054581068 |
10 | 801230111 |
11 | 381301050 |
12 | 1a43b69bb |
13 | c9cc3a76 |
14 | 785a96a3 |
15 | 4a51b7ab |
hex | 2fc1cd1f |
801230111 has 16 divisors (see below), whose sum is σ = 926443008. Its totient is φ = 684835200.
The previous prime is 801230107. The next prime is 801230113. The reversal of 801230111 is 111032108.
It is a cyclic number.
It is not a de Polignac number, because 801230111 - 22 = 801230107 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 801230111.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (801230113) 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, 264596 + ... + 267606.
It is an arithmetic number, because the mean of its divisors is an integer number (57902688).
Almost surely, 2801230111 is an apocalyptic number.
801230111 is a deficient number, since it is larger than the sum of its proper divisors (125212897).
801230111 is a wasteful number, since it uses less digits than its factorization.
801230111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4462.
The product of its (nonzero) digits is 48, while the sum is 17.
The square root of 801230111 is about 28306.0083904460. The cubic root of 801230111 is about 928.7933288483.
Adding to 801230111 its reverse (111032108), we get a palindrome (912262219).
The spelling of 801230111 in words is "eight hundred one million, two hundred thirty thousand, one hundred eleven".
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