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53499018 = 238916503
BaseRepresentation
bin1100110000010…
…1010010001010
310201200000212010
43030011102022
5102143432033
65150400350
71216506546
oct314052212
9121600763
1053499018
1128220671
1215b000b6
13b111c31
147168a26
154a6b863
hex330548a

53499018 has 8 divisors (see below), whose sum is σ = 106998048. Its totient is φ = 17833004.

The previous prime is 53499011. The next prime is 53499023. The reversal of 53499018 is 81099435.

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

53499018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53499011) 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, 4458246 + ... + 4458257.

It is an arithmetic number, because the mean of its divisors is an integer number (13374756).

Almost surely, 253499018 is an apocalyptic number.

53499018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53499018 is a wasteful number, since it uses less digits than its factorization.

53499018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916508.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 53499018 is about 7314.3022907178. The cubic root of 53499018 is about 376.8037967126.

The spelling of 53499018 in words is "fifty-three million, four hundred ninety-nine thousand, eighteen".

Divisors: 1 2 3 6 8916503 17833006 26749509 53499018