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228750071 = 1121119851
BaseRepresentation
bin11011010001001…
…11001011110111
3120221102201002212
431220213023313
5432030000241
634410524035
75445225554
oct1550471367
9527381085
10228750071
1110813a350
126473661b
1338512394
1422547a2b
1515137beb
hexda272f7

228750071 has 8 divisors (see below), whose sum is σ = 249689088. Its totient is φ = 207835000.

The previous prime is 228750059. The next prime is 228750073. The reversal of 228750071 is 170057822.

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 228750071 - 218 = 228487927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228750073) 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 7 ways as a sum of consecutive naturals, for example, 18296 + ... + 28146.

It is an arithmetic number, because the mean of its divisors is an integer number (31211136).

Almost surely, 2228750071 is an apocalyptic number.

228750071 is a deficient number, since it is larger than the sum of its proper divisors (20939017).

228750071 is a wasteful number, since it uses less digits than its factorization.

228750071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11973.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 228750071 is about 15124.4858094416. The cubic root of 228750071 is about 611.5806636212.

The spelling of 228750071 in words is "two hundred twenty-eight million, seven hundred fifty thousand, seventy-one".

Divisors: 1 11 2111 9851 23221 108361 20795461 228750071