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488854921 = 1465733353
BaseRepresentation
bin11101001000110…
…101010110001001
31021001212101212211
4131020311112021
52000121324141
6120301505121
715054125002
oct3510652611
91231771784
10488854921
11230a44a35
121178721a1
137a382289
1448cd41a9
152cdb5d81
hex1d235589

488854921 has 4 divisors (see below), whose sum is σ = 488902932. Its totient is φ = 488806912.

The previous prime is 488854913. The next prime is 488854957. The reversal of 488854921 is 129458884.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 305550400 + 183304521 = 17480^2 + 13539^2 .

It is a cyclic number.

It is not a de Polignac number, because 488854921 - 23 = 488854913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488854901) 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, 2020 + ... + 31333.

It is an arithmetic number, because the mean of its divisors is an integer number (122225733).

Almost surely, 2488854921 is an apocalyptic number.

It is an amenable number.

488854921 is a deficient number, since it is larger than the sum of its proper divisors (48011).

488854921 is a wasteful number, since it uses less digits than its factorization.

488854921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48010.

The product of its digits is 737280, while the sum is 49.

The square root of 488854921 is about 22110.0637945710. The cubic root of 488854921 is about 787.7589216963.

The spelling of 488854921 in words is "four hundred eighty-eight million, eight hundred fifty-four thousand, nine hundred twenty-one".

Divisors: 1 14657 33353 488854921