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53311085 = 581113147
BaseRepresentation
bin1100101101011…
…1011001101101
310201022111001122
43023113121231
5102121423320
65142350325
71215064622
oct313273155
9121274048
1053311085
1128102453
1215a2b3a5
13b077529
14711a349
154a30d25
hex32d766d

53311085 has 8 divisors (see below), whose sum is σ = 64057056. Its totient is φ = 42593040.

The previous prime is 53311081. The next prime is 53311091. The reversal of 53311085 is 58011335.

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

It is not a de Polignac number, because 53311085 - 22 = 53311081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53311081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2519 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (8007132).

Almost surely, 253311085 is an apocalyptic number.

It is an amenable number.

53311085 is a deficient number, since it is larger than the sum of its proper divisors (10745971).

53311085 is a wasteful number, since it uses less digits than its factorization.

53311085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 53311085 is about 7301.4440352577. Note that the first 3 decimals coincide. The cubic root of 53311085 is about 376.3620630644.

The spelling of 53311085 in words is "fifty-three million, three hundred eleven thousand, eighty-five".

Divisors: 1 5 811 4055 13147 65735 10662217 53311085