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53800489 = 73736993
BaseRepresentation
bin1100110100111…
…0111000101001
310202020100101201
43031032320221
5102233103424
65201044201
71222203511
oct315167051
9122210351
1053800489
1128407116
1216026661
13b1b9212
147206841
154acad44
hex334ee29

53800489 has 4 divisors (see below), whose sum is σ = 54537556. Its totient is φ = 53063424.

The previous prime is 53800441. The next prime is 53800493. The reversal of 53800489 is 98400835.

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 27123264 + 26677225 = 5208^2 + 5165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53800489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53800429) 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, 368424 + ... + 368569.

It is an arithmetic number, because the mean of its divisors is an integer number (13634389).

Almost surely, 253800489 is an apocalyptic number.

It is an amenable number.

53800489 is a deficient number, since it is larger than the sum of its proper divisors (737067).

53800489 is an equidigital number, since it uses as much as digits as its factorization.

53800489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737066.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 53800489 is about 7334.8816623038. The cubic root of 53800489 is about 377.5102440095.

It can be divided in two parts, 53800 and 489, that added together give a square (54289 = 2332).

The spelling of 53800489 in words is "fifty-three million, eight hundred thousand, four hundred eighty-nine".

Divisors: 1 73 736993 53800489