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52000489 = 52199809
BaseRepresentation
bin1100011001011…
…1011011101001
310121211220021001
43012113123221
5101303003424
65054315001
71200665632
oct306273351
9117756231
1052000489
1127397812
12154b8a61
13aa08b28
146c98889
154872844
hex31976e9

52000489 has 4 divisors (see below), whose sum is σ = 52100820. Its totient is φ = 51900160.

The previous prime is 52000469. The next prime is 52000499. The reversal of 52000489 is 98400025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11614464 + 40386025 = 3408^2 + 6355^2 .

It is a cyclic number.

It is not a de Polignac number, because 52000489 - 25 = 52000457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52000409) 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, 49384 + ... + 50425.

It is an arithmetic number, because the mean of its divisors is an integer number (13025205).

Almost surely, 252000489 is an apocalyptic number.

It is an amenable number.

52000489 is a deficient number, since it is larger than the sum of its proper divisors (100331).

52000489 is an equidigital number, since it uses as much as digits as its factorization.

52000489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100330.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 52000489 is about 7211.1364568978. The cubic root of 52000489 is about 373.2522856767.

The spelling of 52000489 in words is "fifty-two million, four hundred eighty-nine", and thus it is an aban number.

Divisors: 1 521 99809 52000489