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228710250 = 23353311093
BaseRepresentation
bin11011010000111…
…01011101101010
3120221100200111000
431220131131222
5432022212000
634410015430
75445001506
oct1550353552
9527320430
10228710250
1110811243a
1264717576
13384ca212
1422537306
151512b000
hexda1d76a

228710250 has 128 divisors (see below), whose sum is σ = 655349760. Its totient is φ = 58968000.

The previous prime is 228710213. The next prime is 228710263. The reversal of 228710250 is 52017822.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 208704 + ... + 209796.

It is an arithmetic number, because the mean of its divisors is an integer number (5119920).

Almost surely, 2228710250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228710250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327674880).

228710250 is an abundant number, since it is smaller than the sum of its proper divisors (426639510).

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

228710250 is a wasteful number, since it uses less digits than its factorization.

228710250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 228710250 is about 15123.1693106967. The cubic root of 228710250 is about 611.5451734072.

The spelling of 228710250 in words is "two hundred twenty-eight million, seven hundred ten thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 31 45 50 54 62 75 90 93 125 135 150 155 186 225 250 270 279 310 375 450 465 558 675 750 775 837 930 1093 1125 1350 1395 1550 1674 2186 2250 2325 2790 3279 3375 3875 4185 4650 5465 6558 6750 6975 7750 8370 9837 10930 11625 13950 16395 19674 20925 23250 27325 29511 32790 33883 34875 41850 49185 54650 59022 67766 69750 81975 98370 101649 104625 136625 147555 163950 169415 203298 209250 245925 273250 295110 304947 338830 409875 491850 508245 609894 737775 819750 847075 914841 1016490 1229625 1475550 1524735 1694150 1829682 2459250 2541225 3049470 3688875 4235375 4574205 5082450 7377750 7623675 8470750 9148410 12706125 15247350 22871025 25412250 38118375 45742050 76236750 114355125 228710250