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228197199 = 3268328351
BaseRepresentation
bin11011001101000…
…00001101001111
3120220101121201010
431212200031033
5431404302244
634351020303
75440433646
oct1546401517
9526347633
10228197199
111078a1a2a
126450a693
133837a839
142244235d
1515078eb9
hexd9a034f

228197199 has 8 divisors (see below), whose sum is σ = 304387072. Its totient is φ = 152069400.

The previous prime is 228197159. The next prime is 228197213. The reversal of 228197199 is 991791822.

228197199 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 not a de Polignac number, because 228197199 - 27 = 228197071 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 (228197149) 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, 6127 + ... + 22224.

It is an arithmetic number, because the mean of its divisors is an integer number (38048384).

Almost surely, 2228197199 is an apocalyptic number.

228197199 is a deficient number, since it is larger than the sum of its proper divisors (76189873).

228197199 is a wasteful number, since it uses less digits than its factorization.

228197199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31037.

The product of its digits is 163296, while the sum is 48.

The square root of 228197199 is about 15106.1973706158. The cubic root of 228197199 is about 611.0875510611.

The spelling of 228197199 in words is "two hundred twenty-eight million, one hundred ninety-seven thousand, one hundred ninety-nine".

Divisors: 1 3 2683 8049 28351 85053 76065733 228197199