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228050520 = 233523531559
BaseRepresentation
bin11011001011111…
…00011001011000
3120220010011111120
431211330121120
5431340104040
634343525240
75436253215
oct1545743130
9526104446
10228050520
11107801805
1264459820
1338328b49
1422404b0c
151504a7d0
hexd97c658

228050520 has 128 divisors (see below), whose sum is σ = 727833600. Its totient is φ = 57035264.

The previous prime is 228050479. The next prime is 228050527. The reversal of 228050520 is 25050822.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228050527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145501 + ... + 147059.

It is an arithmetic number, because the mean of its divisors is an integer number (5686200).

Almost surely, 2228050520 is an apocalyptic number.

228050520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228050520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363916800).

228050520 is an abundant number, since it is smaller than the sum of its proper divisors (499783080).

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

228050520 is a wasteful number, since it uses less digits than its factorization.

228050520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 228050520 is about 15101.3416622497. The cubic root of 228050520 is about 610.9565928038.

The spelling of 228050520 in words is "two hundred twenty-eight million, fifty thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 53 60 69 92 106 115 120 138 159 184 212 230 265 276 318 345 424 460 530 552 636 690 795 920 1060 1219 1272 1380 1559 1590 2120 2438 2760 3118 3180 3657 4677 4876 6095 6236 6360 7314 7795 9354 9752 12190 12472 14628 15590 18285 18708 23385 24380 29256 31180 35857 36570 37416 46770 48760 62360 71714 73140 82627 93540 107571 143428 146280 165254 179285 187080 215142 247881 286856 330508 358570 413135 430284 495762 537855 661016 717140 826270 860568 991524 1075710 1239405 1434280 1652540 1900421 1983048 2151420 2478810 3305080 3800842 4302840 4957620 5701263 7601684 9502105 9915240 11402526 15203368 19004210 22805052 28506315 38008420 45610104 57012630 76016840 114025260 228050520