Base | Representation |
---|---|
bin | 111011111011… |
… | …0110000111101 |
3 | 2012010021101110 |
4 | 1313312300331 |
5 | 31020410303 |
6 | 3041232233 |
7 | 531026622 |
oct | 167666075 |
9 | 65107343 |
10 | 31419453 |
11 | 1680a99a |
12 | a632679 |
13 | 66810c0 |
14 | 425c349 |
15 | 2b59703 |
hex | 1df6c3d |
31419453 has 32 divisors (see below), whose sum is σ = 46996992. Its totient is φ = 18547200.
The previous prime is 31419439. The next prime is 31419463. The reversal of 31419453 is 35491413.
It is not a de Polignac number, because 31419453 - 214 = 31403069 is a prime.
Its product of digits (6480) is a multiple of the sum of its prime divisors (405).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 31419453.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31419413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111673 + ... + 111953.
It is an arithmetic number, because the mean of its divisors is an integer number (1468656).
Almost surely, 231419453 is an apocalyptic number.
It is an amenable number.
31419453 is a deficient number, since it is larger than the sum of its proper divisors (15577539).
31419453 is a wasteful number, since it uses less digits than its factorization.
31419453 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 405.
The product of its digits is 6480, while the sum is 30.
The square root of 31419453 is about 5605.3057900528. The cubic root of 31419453 is about 315.5485629103.
The spelling of 31419453 in words is "thirty-one million, four hundred nineteen thousand, four hundred fifty-three".
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