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228447141 = 3135857619
BaseRepresentation
bin11011001110111…
…01001110100101
3120220212022120020
431213131032211
5431440302031
634400225353
75442524436
oct1547351645
9526768506
10228447141
11107a5279a
126460b259
1338437530
14224a948d
15150c8096
hexd9dd3a5

228447141 has 8 divisors (see below), whose sum is σ = 328026720. Its totient is φ = 140582832.

The previous prime is 228447133. The next prime is 228447143. The reversal of 228447141 is 141744822.

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

It is not a de Polignac number, because 228447141 - 23 = 228447133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228447143) 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 7 ways as a sum of consecutive naturals, for example, 2928771 + ... + 2928848.

It is an arithmetic number, because the mean of its divisors is an integer number (41003340).

Almost surely, 2228447141 is an apocalyptic number.

It is an amenable number.

228447141 is a deficient number, since it is larger than the sum of its proper divisors (99579579).

228447141 is a wasteful number, since it uses less digits than its factorization.

228447141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857635.

The product of its digits is 14336, while the sum is 33.

The square root of 228447141 is about 15114.4679363847. The cubic root of 228447141 is about 611.3105755851.

The spelling of 228447141 in words is "two hundred twenty-eight million, four hundred forty-seven thousand, one hundred forty-one".

Divisors: 1 3 13 39 5857619 17572857 76149047 228447141