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228718870 = 2522871887
BaseRepresentation
bin11011010000111…
…11100100010110
3120221101010022021
431220133210112
5432023000440
634410123354
75445035602
oct1550374426
9527333267
10228718870
11108118966
126472055a
1338501113
142253a502
151512d84a
hexda1f916

228718870 has 8 divisors (see below), whose sum is σ = 411693984. Its totient is φ = 91487544.

The previous prime is 228718817. The next prime is 228718879. The reversal of 228718870 is 78817822.

228718870 is digitally balanced in base 3, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (228718879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11435934 + ... + 11435953.

It is an arithmetic number, because the mean of its divisors is an integer number (51461748).

Almost surely, 2228718870 is an apocalyptic number.

228718870 is a deficient number, since it is larger than the sum of its proper divisors (182975114).

228718870 is a wasteful number, since it uses less digits than its factorization.

228718870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22871894.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 228718870 is about 15123.4543011840. The cubic root of 228718870 is about 611.5528562769.

The spelling of 228718870 in words is "two hundred twenty-eight million, seven hundred eighteen thousand, eight hundred seventy".

Divisors: 1 2 5 10 22871887 45743774 114359435 228718870