Base | Representation |
---|---|
bin | 1001010011001111100110… |
… | …11100101011010100101111 |
3 | 2200102020021120102121101210 |
4 | 10221213303130223110233 |
5 | 10140043030430132411 |
6 | 111255414055405503 |
7 | 4210432060565010 |
oct | 451476334532457 |
9 | 80366246377353 |
10 | 20452423677231 |
11 | 6575907a77017 |
12 | 2363997383893 |
13 | b5486984a820 |
14 | 509c8c9b5007 |
15 | 257033cc5ca6 |
hex | 1299f372b52f |
20452423677231 has 64 divisors (see below), whose sum is σ = 33634483255296. Its totient is φ = 10765108224000.
The previous prime is 20452423677139. The next prime is 20452423677251. The reversal of 20452423677231 is 13277632425402.
It is a happy number.
It is not a de Polignac number, because 20452423677231 - 234 = 20435243808047 is a prime.
It is a super-2 number, since 2×204524236772312 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20452423677251) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 833046406 + ... + 833070956.
It is an arithmetic number, because the mean of its divisors is an integer number (525538800864).
Almost surely, 220452423677231 is an apocalyptic number.
20452423677231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20452423677231 is a deficient number, since it is larger than the sum of its proper divisors (13182059578065).
20452423677231 is a wasteful number, since it uses less digits than its factorization.
20452423677231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30952.
The product of its (nonzero) digits is 3386880, while the sum is 48.
The spelling of 20452423677231 in words is "twenty trillion, four hundred fifty-two billion, four hundred twenty-three million, six hundred seventy-seven thousand, two hundred thirty-one".
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