Base | Representation |
---|---|
bin | 1100011101110010010… |
… | …1111110011110000111 |
3 | 202110202210011200001210 |
4 | 3013130211332132013 |
5 | 12002042002341411 |
6 | 242214154422503 |
7 | 21320641600026 |
oct | 3073445763607 |
9 | 673683150053 |
10 | 214154340231 |
11 | 829055a6547 |
12 | 35607a31a33 |
13 | 1726b8b9620 |
14 | a517c928bd |
15 | 5885de2ca6 |
hex | 31dc97e787 |
214154340231 has 32 divisors (see below), whose sum is σ = 315386604288. Its totient is φ = 128416700160.
The previous prime is 214154340221. The next prime is 214154340251. The reversal of 214154340231 is 132043451412.
It is not a de Polignac number, because 214154340231 - 213 = 214154332039 is a prime.
It is a super-2 number, since 2×2141543402312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214154340221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1241400 + ... + 1403346.
It is an arithmetic number, because the mean of its divisors is an integer number (9855831384).
Almost surely, 2214154340231 is an apocalyptic number.
214154340231 is a deficient number, since it is larger than the sum of its proper divisors (101232264057).
214154340231 is a wasteful number, since it uses less digits than its factorization.
214154340231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162831.
The product of its (nonzero) digits is 11520, while the sum is 30.
Adding to 214154340231 its reverse (132043451412), we get a palindrome (346197791643).
The spelling of 214154340231 in words is "two hundred fourteen billion, one hundred fifty-four million, three hundred forty thousand, two hundred thirty-one".
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