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228483517 = 816127997
BaseRepresentation
bin11011001111001…
…10000110111101
3120220221011110111
431213212012331
5431442433032
634401110021
75443035463
oct1547460675
9526834414
10228483517
11107a78059
1264628311
133844ac62
14224b8833
15150d3c47
hexd9e61bd

228483517 has 4 divisors (see below), whose sum is σ = 228519676. Its totient is φ = 228447360.

The previous prime is 228483509. The next prime is 228483523. The reversal of 228483517 is 715384822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 715384822 = 2357692411.

It can be written as a sum of positive squares in 2 ways, for example, as 158911236 + 69572281 = 12606^2 + 8341^2 .

It is a cyclic number.

It is not a de Polignac number, because 228483517 - 23 = 228483509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228483517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228483527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5838 + ... + 22159.

It is an arithmetic number, because the mean of its divisors is an integer number (57129919).

Almost surely, 2228483517 is an apocalyptic number.

It is an amenable number.

228483517 is a deficient number, since it is larger than the sum of its proper divisors (36159).

228483517 is an equidigital number, since it uses as much as digits as its factorization.

228483517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36158.

The product of its digits is 107520, while the sum is 40.

The square root of 228483517 is about 15115.6712388170. The cubic root of 228483517 is about 611.3430205134.

The spelling of 228483517 in words is "two hundred twenty-eight million, four hundred eighty-three thousand, five hundred seventeen".

Divisors: 1 8161 27997 228483517