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52143360 = 283537367
BaseRepresentation
bin1100011011101…
…0010100000000
310122010011020120
43012322110000
5101322041420
65101340240
71202132313
oct306722400
9118104216
1052143360
1127485095
1215567680
13aa58b79
146cd497a
15489ed40
hex31ba500

52143360 has 144 divisors (see below), whose sum is σ = 171499776. Its totient is φ = 13492224.

The previous prime is 52143341. The next prime is 52143383. The reversal of 52143360 is 6334125.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 52143360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141897 + ... + 142263.

Almost surely, 252143360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52143360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85749888).

52143360 is an abundant number, since it is smaller than the sum of its proper divisors (119356416).

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

52143360 is a wasteful number, since it uses less digits than its factorization.

52143360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 52143360 is about 7221.0359367614. The cubic root of 52143360 is about 373.5938091527.

Adding to 52143360 its reverse (6334125), we get a palindrome (58477485).

The spelling of 52143360 in words is "fifty-two million, one hundred forty-three thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 64 74 80 96 111 120 128 148 160 185 192 222 240 256 296 320 367 370 384 444 480 555 592 640 734 740 768 888 960 1101 1110 1184 1280 1468 1480 1776 1835 1920 2202 2220 2368 2936 2960 3552 3670 3840 4404 4440 4736 5505 5872 5920 7104 7340 8808 8880 9472 11010 11744 11840 13579 14208 14680 17616 17760 22020 23488 23680 27158 28416 29360 35232 35520 40737 44040 46976 47360 54316 58720 67895 70464 71040 81474 88080 93952 108632 117440 135790 140928 142080 162948 176160 203685 217264 234880 271580 281856 325896 352320 407370 434528 469760 543160 651792 704640 814740 869056 1086320 1303584 1409280 1629480 1738112 2172640 2607168 3258960 3476224 4345280 5214336 6517920 8690560 10428672 13035840 17381120 26071680 52143360