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228828763 = 2931254537
BaseRepresentation
bin11011010001110…
…10011001011011
3120221120201001101
431220322121123
5432040010023
634412332231
75446004152
oct1550723133
9527521041
10228828763
11108193489
1264774077
133853c147
1422568599
15151511ad
hexda3a65b

228828763 has 8 divisors (see below), whose sum is σ = 244356480. Its totient is φ = 213810240.

The previous prime is 228828737. The next prime is 228828781. The reversal of 228828763 is 367828822.

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 228828763 - 29 = 228828251 is a prime.

It is a super-2 number, since 2×2288287632 = 104725205552220338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228828703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126370 + ... + 128167.

It is an arithmetic number, because the mean of its divisors is an integer number (30544560).

Almost surely, 2228828763 is an apocalyptic number.

228828763 is a deficient number, since it is larger than the sum of its proper divisors (15527717).

228828763 is a wasteful number, since it uses less digits than its factorization.

228828763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254597.

The product of its digits is 516096, while the sum is 46.

The square root of 228828763 is about 15127.0870626172. The cubic root of 228828763 is about 611.6507852577.

The spelling of 228828763 in words is "two hundred twenty-eight million, eight hundred twenty-eight thousand, seven hundred sixty-three".

Divisors: 1 29 31 899 254537 7381573 7890647 228828763