Base | Representation |
---|---|
bin | 11101000010110… |
… | …011000111110101 |
3 | 1020221220000211021 |
4 | 131002303013311 |
5 | 1444220213244 |
6 | 120203541141 |
7 | 15034515562 |
oct | 3502630765 |
9 | 1227800737 |
10 | 487272949 |
11 | 230064419 |
12 | 11722a7b1 |
13 | 79c4a1b7 |
14 | 48a01869 |
15 | 2cba2284 |
hex | 1d0b31f5 |
487272949 has 4 divisors (see below), whose sum is σ = 487335436. Its totient is φ = 487210464.
The previous prime is 487272931. The next prime is 487272967. The reversal of 487272949 is 949272784.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (487272931) and next prime (487272967).
It can be written as a sum of positive squares in 2 ways, for example, as 415752100 + 71520849 = 20390^2 + 8457^2 .
It is a cyclic number.
It is not a de Polignac number, because 487272949 - 221 = 485175797 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 487272896 and 487272905.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487272349) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17544 + ... + 35809.
It is an arithmetic number, because the mean of its divisors is an integer number (121833859).
Almost surely, 2487272949 is an apocalyptic number.
It is an amenable number.
487272949 is a deficient number, since it is larger than the sum of its proper divisors (62487).
487272949 is an equidigital number, since it uses as much as digits as its factorization.
487272949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62486.
The product of its digits is 2032128, while the sum is 52.
The square root of 487272949 is about 22074.2598743423. The cubic root of 487272949 is about 786.9082540066.
The spelling of 487272949 in words is "four hundred eighty-seven million, two hundred seventy-two thousand, nine hundred forty-nine".
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