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228879101 = 1120807191
BaseRepresentation
bin11011010010001…
…10101011111101
3120221200021002202
431221012223331
5432043112401
634413401245
75446304003
oct1551065375
9527607082
10228879101
11108218290
1264799225
1338559029
142257ca73
151516106b
hexda46afd

228879101 has 4 divisors (see below), whose sum is σ = 249686304. Its totient is φ = 208071900.

The previous prime is 228879083. The next prime is 228879103. The reversal of 228879101 is 101978822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228879101 - 214 = 228862717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228879103) 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, 10403585 + ... + 10403606.

It is an arithmetic number, because the mean of its divisors is an integer number (62421576).

Almost surely, 2228879101 is an apocalyptic number.

It is an amenable number.

228879101 is a deficient number, since it is larger than the sum of its proper divisors (20807203).

228879101 is a wasteful number, since it uses less digits than its factorization.

228879101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20807202.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 228879101 is about 15128.7508076510. The cubic root of 228879101 is about 611.6956325042.

The spelling of 228879101 in words is "two hundred twenty-eight million, eight hundred seventy-nine thousand, one hundred one".

Divisors: 1 11 20807191 228879101