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52112287220 = 22571764134159
BaseRepresentation
bin110000100010001000…
…100110010111110100
311222111210110110221212
4300202020212113310
51323211221142340
635535015100552
73523251063350
oct604210462764
9158453413855
1052112287220
1120112033774
12a124371758
134bb6570516
142745098460
151550037a65
hexc222265f4

52112287220 has 96 divisors (see below), whose sum is σ = 132636994560. Its totient is φ = 16789340160.

The previous prime is 52112287193. The next prime is 52112287229. The reversal of 52112287220 is 2278221125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52112287229) 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, 1508501 + ... + 1542659.

It is an arithmetic number, because the mean of its divisors is an integer number (1381635360).

Almost surely, 252112287220 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 52112287220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66318497280).

52112287220 is an abundant number, since it is smaller than the sum of its proper divisors (80524707340).

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

52112287220 is a wasteful number, since it uses less digits than its factorization.

52112287220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34833 (or 34831 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 52112287220 in words is "fifty-two billion, one hundred twelve million, two hundred eighty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 641 1190 1282 2380 2564 3205 4487 6410 8974 10897 12820 17948 21794 22435 34159 43588 44870 54485 68318 76279 89740 108970 136636 152558 170795 217940 239113 305116 341590 381395 478226 580703 683180 762790 956452 1161406 1195565 1525580 2322812 2391130 2903515 4064921 4782260 5807030 8129842 11614060 16259684 20324605 21895919 40649210 43791838 81298420 87583676 109479595 153271433 218959190 306542866 372230623 437918380 613085732 744461246 766357165 1488922492 1532714330 1861153115 2605614361 3065428660 3722306230 5211228722 7444612460 10422457444 13028071805 26056143610 52112287220