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228150857 = 11107193841
BaseRepresentation
bin11011001100101…
…00111001001001
3120220022021010202
431212110321021
5431401311412
634350021545
75440151564
oct1546247111
9526267122
10228150857
11107870130
12644a78b5
133836270c
142242d4db
151506a3c2
hexd994e49

228150857 has 8 divisors (see below), whose sum is σ = 251219232. Its totient is φ = 205470400.

The previous prime is 228150851. The next prime is 228150889. The reversal of 228150857 is 758051822.

It is a happy number.

228150857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 228150857 - 210 = 228149833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228150857.

It is not an unprimeable number, because it can be changed into a prime (228150851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95744 + ... + 98097.

It is an arithmetic number, because the mean of its divisors is an integer number (31402404).

Almost surely, 2228150857 is an apocalyptic number.

It is an amenable number.

228150857 is a deficient number, since it is larger than the sum of its proper divisors (23068375).

228150857 is a wasteful number, since it uses less digits than its factorization.

228150857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193959.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 228150857 is about 15104.6634189577. The cubic root of 228150857 is about 611.0461819636.

The spelling of 228150857 in words is "two hundred twenty-eight million, one hundred fifty thousand, eight hundred fifty-seven".

Divisors: 1 11 107 1177 193841 2132251 20740987 228150857