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52104431240 = 23547187114813
BaseRepresentation
bin110000100001101010…
…101000011010001000
311222111020200100120122
4300201222220122020
51323202213244430
635534134442412
73523124233541
oct604152503210
9158436610518
1052104431240
1120108658424
12a121803408
134bb4a4c804
1427440114c8
15154e4d4ee5
hexc21aa8688

52104431240 has 64 divisors (see below), whose sum is σ = 119801410560. Its totient is φ = 20386051840.

The previous prime is 52104431233. The next prime is 52104431243. The reversal of 52104431240 is 4213440125.

It is not an unprimeable number, because it can be changed into a prime (52104431243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3510074 + ... + 3524886.

It is an arithmetic number, because the mean of its divisors is an integer number (1871897040).

Almost surely, 252104431240 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 52104431240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59900705280).

52104431240 is an abundant number, since it is smaller than the sum of its proper divisors (67696979320).

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

52104431240 is a wasteful number, since it uses less digits than its factorization.

52104431240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16742 (or 16738 counting only the distinct ones).

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

Adding to 52104431240 its reverse (4213440125), we get a palindrome (56317871365).

The spelling of 52104431240 in words is "fifty-two billion, one hundred four million, four hundred thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1871 1880 3742 7484 9355 14813 14968 18710 29626 37420 59252 74065 74840 87937 118504 148130 175874 296260 351748 439685 592520 696211 703496 879370 1392422 1758740 2784844 3481055 3517480 5569688 6962110 13924220 27715123 27848440 55430246 110860492 138575615 221720984 277151230 554302460 1108604920 1302610781 2605221562 5210443124 6513053905 10420886248 13026107810 26052215620 52104431240