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228828075 = 35271725639
BaseRepresentation
bin11011010001110…
…10001110101011
3120221120200002220
431220322032223
5432034444300
634412325123
75446002150
oct1550721653
9527520086
10228828075
11108192a13
12647737a3
133853ba38
1422568227
1515150da0
hexda3a3ab

228828075 has 48 divisors (see below), whose sum is σ = 457827840. Its totient is φ = 98449920.

The previous prime is 228828059. The next prime is 228828079. The reversal of 228828075 is 570828822.

It is not a de Polignac number, because 228828075 - 24 = 228828059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228828079) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3895 + ... + 21744.

It is an arithmetic number, because the mean of its divisors is an integer number (9538080).

Almost surely, 2228828075 is an apocalyptic number.

228828075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228828075 is an abundant number, since it is smaller than the sum of its proper divisors (228999765).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228828075 is a wasteful number, since it uses less digits than its factorization.

228828075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25676 (or 25671 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 228828075 is about 15127.0643219364. The cubic root of 228828075 is about 611.6501722576.

The spelling of 228828075 in words is "two hundred twenty-eight million, eight hundred twenty-eight thousand, seventy-five".

Divisors: 1 3 5 7 15 17 21 25 35 51 75 85 105 119 175 255 357 425 525 595 1275 1785 2975 8925 25639 76917 128195 179473 384585 435863 538419 640975 897365 1307589 1922925 2179315 2692095 3051041 4486825 6537945 9153123 10896575 13460475 15255205 32689725 45765615 76276025 228828075