Base | Representation |
---|---|
bin | 10010101111111110… |
… | …101110010001001111 |
3 | 1220222001112001020121 |
4 | 102233332232101033 |
5 | 312212333340211 |
6 | 13125413325411 |
7 | 1311616635262 |
oct | 225776562117 |
9 | 56861461217 |
10 | 20132324431 |
11 | 85a119935a |
12 | 3a9a336867 |
13 | 1b8ac2840b |
14 | d8dacccd9 |
15 | 7cc6a8271 |
hex | 4affae44f |
20132324431 has 8 divisors (see below), whose sum is σ = 20175829200. Its totient is φ = 20088856320.
The previous prime is 20132324417. The next prime is 20132324473. The reversal of 20132324431 is 13442323102.
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 20132324431 - 29 = 20132323919 is a prime.
It is a super-2 number, since 2×201323244312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20132324396 and 20132324405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20132364431) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280325 + ... + 1295953.
It is an arithmetic number, because the mean of its divisors is an integer number (2521978650).
Almost surely, 220132324431 is an apocalyptic number.
20132324431 is a deficient number, since it is larger than the sum of its proper divisors (43504769).
20132324431 is a wasteful number, since it uses less digits than its factorization.
20132324431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18329.
The product of its (nonzero) digits is 3456, while the sum is 25.
Adding to 20132324431 its reverse (13442323102), we get a palindrome (33574647533).
The spelling of 20132324431 in words is "twenty billion, one hundred thirty-two million, three hundred twenty-four thousand, four hundred thirty-one".
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