Search a number
-
+
31063717048 = 2371369161751
BaseRepresentation
bin11100111011100010…
…101011010010111000
32222011212212022211211
4130323202223102320
51002104302421143
622134231132504
72146534144510
oct347342532270
988155768754
1031063717048
11121a0727431
12602b214134
132c10881080
141709820840
15c1c1e449d
hex73b8ab4b8

31063717048 has 64 divisors (see below), whose sum is σ = 71790405120. Its totient is φ = 12270960000.

The previous prime is 31063717031. The next prime is 31063717067. The reversal of 31063717048 is 84071736013.

It is a self number, because there is not a number n which added to its sum of digits gives 31063717048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472173 + ... + 533923.

It is an arithmetic number, because the mean of its divisors is an integer number (1121725080).

Almost surely, 231063717048 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 31063717048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35895202560).

31063717048 is an abundant number, since it is smaller than the sum of its proper divisors (40726688072).

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

31063717048 is a wasteful number, since it uses less digits than its factorization.

31063717048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62468 (or 62464 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 31063717048 in words is "thirty-one billion, sixty-three million, seven hundred seventeen thousand, forty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 691 728 1382 2764 4837 5528 8983 9674 17966 19348 35932 38696 61751 62881 71864 123502 125762 247004 251524 432257 494008 503048 802763 864514 1605526 1729028 3211052 3458056 5619341 6422104 11238682 22477364 42669941 44954728 85339882 170679764 298689587 341359528 554709233 597379174 1109418466 1194758348 2218836932 2389516696 3882964631 4437673864 7765929262 15531858524 31063717048