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250427220 = 223519239551
BaseRepresentation
bin11101110110100…
…11011101010100
3122110020000120020
432323103131110
51003102132340
640503305140
76130411341
oct1673233524
9573200506
10250427220
111193a574a
126ba4b1b0
133cb61cb4
142538b7c8
1516eba9d0
hexeed3754

250427220 has 96 divisors (see below), whose sum is σ = 770273280. Its totient is φ = 60508800.

The previous prime is 250427189. The next prime is 250427273. The reversal of 250427220 is 22724052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21445 + ... + 30995.

It is an arithmetic number, because the mean of its divisors is an integer number (8023680).

Almost surely, 2250427220 is an apocalyptic number.

250427220 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 250427220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385136640).

250427220 is an abundant number, since it is smaller than the sum of its proper divisors (519846060).

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

250427220 is a wasteful number, since it uses less digits than its factorization.

250427220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9605 (or 9603 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 250427220 is about 15824.8924166959. The cubic root of 250427220 is about 630.3191630491.

The spelling of 250427220 in words is "two hundred fifty million, four hundred twenty-seven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 23 30 38 46 57 60 69 76 92 95 114 115 138 190 228 230 276 285 345 380 437 460 570 690 874 1140 1311 1380 1748 2185 2622 4370 5244 6555 8740 9551 13110 19102 26220 28653 38204 47755 57306 95510 114612 143265 181469 191020 219673 286530 362938 439346 544407 573060 659019 725876 878692 907345 1088814 1098365 1318038 1814690 2177628 2196730 2636076 2722035 3295095 3629380 4173787 4393460 5444070 6590190 8347574 10888140 12521361 13180380 16695148 20868935 25042722 41737870 50085444 62606805 83475740 125213610 250427220