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228550823 = 1074334933
BaseRepresentation
bin11011001111101…
…10100010100111
3120221001120210022
431213312202213
5432002111243
634402345355
75443435634
oct1547664247
9527046708
10228550823
11108013686
126465b25b
1338472797
14224d518b
15150e8b68
hexd9f68a7

228550823 has 8 divisors (see below), whose sum is σ = 231266448. Its totient is φ = 225846144.

The previous prime is 228550807. The next prime is 228550849. The reversal of 228550823 is 328055822.

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 228550823 - 24 = 228550807 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 (228550123) 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, 43865 + ... + 48797.

It is an arithmetic number, because the mean of its divisors is an integer number (28908306).

Almost surely, 2228550823 is an apocalyptic number.

228550823 is a deficient number, since it is larger than the sum of its proper divisors (2715625).

228550823 is a wasteful number, since it uses less digits than its factorization.

228550823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 228550823 is about 15117.8974397897. The cubic root of 228550823 is about 611.4030438274.

The spelling of 228550823 in words is "two hundred twenty-eight million, five hundred fifty thousand, eight hundred twenty-three".

Divisors: 1 107 433 4933 46331 527831 2135989 228550823