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53819285 = 513827989
BaseRepresentation
bin1100110101001…
…1011110010101
310202021022011212
43031103132111
5102234204120
65201311205
71222312352
oct315233625
9122238155
1053819285
112841a253
1216035505
13b1c4940
14720d629
154ad16c5
hex3353795

53819285 has 8 divisors (see below), whose sum is σ = 69551160. Its totient is φ = 39743424.

The previous prime is 53819261. The next prime is 53819299. The reversal of 53819285 is 58291835.

It can be written as a sum of positive squares in 4 ways, for example, as 908209 + 52911076 = 953^2 + 7274^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53819285 - 214 = 53802901 is a prime.

It is a super-2 number, since 2×538192852 = 5793030875822450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413930 + ... + 414059.

It is an arithmetic number, because the mean of its divisors is an integer number (8693895).

Almost surely, 253819285 is an apocalyptic number.

It is an amenable number.

53819285 is a deficient number, since it is larger than the sum of its proper divisors (15731875).

53819285 is a wasteful number, since it uses less digits than its factorization.

53819285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828007.

The product of its digits is 86400, while the sum is 41.

The square root of 53819285 is about 7336.1628253468. The cubic root of 53819285 is about 377.5542018280.

The spelling of 53819285 in words is "fifty-three million, eight hundred nineteen thousand, two hundred eighty-five".

Divisors: 1 5 13 65 827989 4139945 10763857 53819285