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228020822 = 2281405731
BaseRepresentation
bin11011001011101…
…01001001010110
3120220001122202122
431211311021112
5431333131242
634343135542
75436100511
oct1545651126
9526048678
10228020822
11107791467
12644445b2
1338318483
14223d7d78
1515041ad2
hexd975256

228020822 has 8 divisors (see below), whose sum is σ = 343249272. Its totient is φ = 113604400.

The previous prime is 228020801. The next prime is 228020851.

228020822 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 228020791 and 228020800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202304 + ... + 203427.

It is an arithmetic number, because the mean of its divisors is an integer number (42906159).

Almost surely, 2228020822 is an apocalyptic number.

228020822 is a deficient number, since it is larger than the sum of its proper divisors (115228450).

228020822 is a wasteful number, since it uses less digits than its factorization.

228020822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406014.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 228020822 is about 15100.3583401190. The cubic root of 228020822 is about 610.9300709370.

The spelling of 228020822 in words is "two hundred twenty-eight million, twenty thousand, eight hundred twenty-two".

Divisors: 1 2 281 562 405731 811462 114010411 228020822