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253282400 = 25527311459
BaseRepresentation
bin11110001100011…
…00100001100000
3122122121002010122
433012030201200
51004320014100
641044415412
76163602440
oct1706144140
9578532118
10253282400
1111aa758a8
12709a7568
1340621757
14258d2120
1517381985
hexf18c860

253282400 has 144 divisors (see below), whose sum is σ = 729953280. Its totient is φ = 83980800.

The previous prime is 253282399. The next prime is 253282409. The reversal of 253282400 is 4282352.

It is a self number, because there is not a number n which added to its sum of digits gives 253282400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253282409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172871 + ... + 174329.

It is an arithmetic number, because the mean of its divisors is an integer number (5069120).

Almost surely, 2253282400 is an apocalyptic number.

253282400 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 253282400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364976640).

253282400 is an abundant number, since it is smaller than the sum of its proper divisors (476670880).

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

253282400 is a wasteful number, since it uses less digits than its factorization.

253282400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 253282400 is about 15914.8484127245. The cubic root of 253282400 is about 632.7055891431.

The spelling of 253282400 in words is "two hundred fifty-three million, two hundred eighty-two thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 31 32 35 40 50 56 62 70 80 100 112 124 140 155 160 175 200 217 224 248 280 310 350 400 434 496 560 620 700 775 800 868 992 1085 1120 1240 1400 1459 1550 1736 2170 2480 2800 2918 3100 3472 4340 4960 5425 5600 5836 6200 6944 7295 8680 10213 10850 11672 12400 14590 17360 20426 21700 23344 24800 29180 34720 36475 40852 43400 45229 46688 51065 58360 72950 81704 86800 90458 102130 116720 145900 163408 173600 180916 204260 226145 233440 255325 291800 316603 326816 361832 408520 452290 510650 583600 633206 723664 817040 904580 1021300 1130725 1167200 1266412 1447328 1583015 1634080 1809160 2042600 2261450 2532824 3166030 3618320 4085200 4522900 5065648 6332060 7236640 7915075 8170400 9045800 10131296 12664120 15830150 18091600 25328240 31660300 36183200 50656480 63320600 126641200 253282400