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228590371 = 7910128649
BaseRepresentation
bin11011010000000…
…00001100100011
3120221010121001001
431220000030203
5432004342441
634403252431
75443662142
oct1550001443
9527117031
10228590371
11108040369
126467a117
1338487799
1422505759
1515105731
hexda00323

228590371 has 8 divisors (see below), whose sum is σ = 233784000. Its totient is φ = 223454400.

The previous prime is 228590357. The next prime is 228590377. The reversal of 228590371 is 173095822.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228590371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228590371.

It is not an unprimeable number, because it can be changed into a prime (228590377) 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, 6346 + ... + 22303.

It is an arithmetic number, because the mean of its divisors is an integer number (29223000).

Almost surely, 2228590371 is an apocalyptic number.

228590371 is a deficient number, since it is larger than the sum of its proper divisors (5193629).

228590371 is a wasteful number, since it uses less digits than its factorization.

228590371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28829.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 228590371 is about 15119.2053693308. The cubic root of 228590371 is about 611.4383071337.

The spelling of 228590371 in words is "two hundred twenty-eight million, five hundred ninety thousand, three hundred seventy-one".

Divisors: 1 79 101 7979 28649 2263271 2893549 228590371