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53135459 = 13259732
BaseRepresentation
bin1100101010110…
…0100001100011
310200222120010222
43022230201203
5102100313314
65134513255
71213433606
oct312544143
9120876128
1053135459
1127aa2503
121596582b
13b015600
1470b233d
1549e8c8e
hex32ac863

53135459 has 18 divisors (see below), whose sum is σ = 59324940. Its totient is φ = 47556288.

The previous prime is 53135449. The next prime is 53135471. The reversal of 53135459 is 95453135.

It is not a de Polignac number, because 53135459 - 24 = 53135443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53135449) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 727847 + ... + 727919.

It is an arithmetic number, because the mean of its divisors is an integer number (3295830).

Almost surely, 253135459 is an apocalyptic number.

53135459 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

53135459 is a deficient number, since it is larger than the sum of its proper divisors (6189481).

53135459 is an equidigital number, since it uses as much as digits as its factorization.

53135459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 145 counting only the distinct ones).

The product of its digits is 40500, while the sum is 35.

The square root of 53135459 is about 7289.4073147273. The cubic root of 53135459 is about 375.9483174588.

The spelling of 53135459 in words is "fifty-three million, one hundred thirty-five thousand, four hundred fifty-nine".

Divisors: 1 13 59 73 169 767 949 4307 5329 9971 12337 55991 69277 314411 727883 900601 4087343 53135459