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228105453 = 3671318663
BaseRepresentation
bin11011001100010…
…01110011101101
3120220012221212010
431212021303231
5431343333303
634345031433
75436602322
oct1546116355
9526187763
10228105453
1110783a004
1264485579
1338347b54
142241ab49
151505bc03
hexd989ced

228105453 has 16 divisors (see below), whose sum is σ = 311072256. Its totient is φ = 148639920.

The previous prime is 228105433. The next prime is 228105461. The reversal of 228105453 is 354501822.

It is not a de Polignac number, because 228105453 - 28 = 228105197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228105453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228105433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22000 + ... + 30662.

It is an arithmetic number, because the mean of its divisors is an integer number (19442016).

Almost surely, 2228105453 is an apocalyptic number.

It is an amenable number.

228105453 is a deficient number, since it is larger than the sum of its proper divisors (82966803).

228105453 is a wasteful number, since it uses less digits than its factorization.

228105453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 228105453 is about 15103.1603646389. The cubic root of 228105453 is about 611.0056447772.

The spelling of 228105453 in words is "two hundred twenty-eight million, one hundred five thousand, four hundred fifty-three".

Divisors: 1 3 67 131 201 393 8663 8777 25989 26331 580421 1134853 1741263 3404559 76035151 228105453