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52485858420 = 22358330193491
BaseRepresentation
bin110000111000011001…
…101010010001110100
312000110211101212022020
4300320121222101310
51324442334432140
640040042033140
73535435302252
oct607031522164
9160424355266
1052485858420
11202939982a6
12a2094a87b0
134c45a8a478
14277c93d5d2
151572c2a6d0
hexc3866a474

52485858420 has 96 divisors (see below), whose sum is σ = 148822894080. Its totient is φ = 13819059840.

The previous prime is 52485858413. The next prime is 52485858421. The reversal of 52485858420 is 2485858425.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52485858421) 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, 15032875 + ... + 15036365.

It is an arithmetic number, because the mean of its divisors is an integer number (1550238480).

Almost surely, 252485858420 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 52485858420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74411447040).

52485858420 is an abundant number, since it is smaller than the sum of its proper divisors (96337035660).

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

52485858420 is a wasteful number, since it uses less digits than its factorization.

52485858420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605 (or 6603 counting only the distinct ones).

The product of its (nonzero) digits is 4096000, while the sum is 51.

The spelling of 52485858420 in words is "fifty-two billion, four hundred eighty-five million, eight hundred fifty-eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 3019 3491 4980 6038 6982 9057 10473 12076 13964 15095 17455 18114 20946 30190 34910 36228 41892 45285 52365 60380 69820 90570 104730 181140 209460 250577 289753 501154 579506 751731 869259 1002308 1159012 1252885 1448765 1503462 1738518 2505770 2897530 3006924 3477036 3758655 4346295 5011540 5795060 7517310 8692590 10539329 15034620 17385180 21078658 31617987 42157316 52696645 63235974 105393290 126471948 158089935 210786580 316179870 632359740 874764307 1749528614 2624292921 3499057228 4373821535 5248585842 8747643070 10497171684 13121464605 17495286140 26242929210 52485858420