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228712955 = 5331313807
BaseRepresentation
bin11011010000111…
…10000111111011
3120221100211012012
431220132013323
5432022303310
634410040135
75445012422
oct1550360773
9527324165
10228712955
11108114479
126471904b
13384cb513
14225382b9
151512bc05
hexda1e1fb

228712955 has 8 divisors (see below), whose sum is σ = 274558272. Its totient is φ = 182901888.

The previous prime is 228712949. The next prime is 228712987. The reversal of 228712955 is 559217822.

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-228712955 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 9662 + ... + 23468.

It is an arithmetic number, because the mean of its divisors is an integer number (34319784).

Almost surely, 2228712955 is an apocalyptic number.

228712955 is a deficient number, since it is larger than the sum of its proper divisors (45845317).

228712955 is a wasteful number, since it uses less digits than its factorization.

228712955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17125.

The product of its digits is 100800, while the sum is 41.

The square root of 228712955 is about 15123.2587427446. The cubic root of 228712955 is about 611.5475843517.

The spelling of 228712955 in words is "two hundred twenty-eight million, seven hundred twelve thousand, nine hundred fifty-five".

Divisors: 1 5 3313 13807 16565 69035 45742591 228712955