Base | Representation |
---|---|
bin | 101011010101111… |
… | …0101010101011111 |
3 | 10202100120200101200 |
4 | 1112223311111133 |
5 | 10434302044411 |
6 | 400151210543 |
7 | 51016416513 |
oct | 12653652537 |
9 | 3670520350 |
10 | 1454331231 |
11 | 686a28641 |
12 | 347076a53 |
13 | 1a23c2432 |
14 | db216143 |
15 | 87a27e56 |
hex | 56af555f |
1454331231 has 24 divisors (see below), whose sum is σ = 2213718000. Its totient is φ = 917505792.
The previous prime is 1454331223. The next prime is 1454331233. The reversal of 1454331231 is 1321334541.
It is a happy number.
It is not a de Polignac number, because 1454331231 - 23 = 1454331223 is a prime.
It is a super-2 number, since 2×14543312312 = 4230158658923950722, which contains 22 as substring.
It is a zygodrome in base 4.
It is a junction number, because it is equal to n+sod(n) for n = 1454331195 and 1454331204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1454331233) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168325 + ... + 176753.
It is an arithmetic number, because the mean of its divisors is an integer number (92238250).
Almost surely, 21454331231 is an apocalyptic number.
1454331231 is a deficient number, since it is larger than the sum of its proper divisors (759386769).
1454331231 is a wasteful number, since it uses less digits than its factorization.
1454331231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9463 (or 9460 counting only the distinct ones).
The product of its digits is 4320, while the sum is 27.
The square root of 1454331231 is about 38135.6949720337. The cubic root of 1454331231 is about 1132.9770432996.
Adding to 1454331231 its reverse (1321334541), we get a palindrome (2775665772).
The spelling of 1454331231 in words is "one billion, four hundred fifty-four million, three hundred thirty-one thousand, two hundred thirty-one".
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