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813130625300 = 225271961137641
BaseRepresentation
bin10111101010100100101…
…11001011000100010100
32212201211110201121200012
423311102113023010110
5101310242420002200
61421314055135352
7112514064163310
oct13652227130424
92781743647605
10813130625300
11293935048944
1211170b974558
135b8a7425646
142b4da1b4b40
1516240e47a35
hexbd525cb114

813130625300 has 72 divisors (see below), whose sum is σ = 2122698930240. Its totient is φ = 264114604800.

The previous prime is 813130625227. The next prime is 813130625317. The reversal of 813130625300 is 3526031318.

It is a super-2 number, since 2×8131306253002 (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 30555521 + ... + 30582120.

Almost surely, 2813130625300 is an apocalyptic number.

It is an amenable number.

813130625300 is an abundant number, since it is smaller than the sum of its proper divisors (1309568304940).

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

813130625300 is a wasteful number, since it uses less digits than its factorization.

813130625300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61137681 (or 61137674 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 813130625300 its reverse (3526031318), we get a palindrome (816656656618).

The spelling of 813130625300 in words is "eight hundred thirteen billion, one hundred thirty million, six hundred twenty-five thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 19 20 25 28 35 38 50 70 76 95 100 133 140 175 190 266 350 380 475 532 665 700 950 1330 1900 2660 3325 6650 13300 61137641 122275282 244550564 305688205 427963487 611376410 855926974 1161615179 1222752820 1528441025 1711853948 2139817435 2323230358 3056882050 4279634870 4646460716 5808075895 6113764100 8131306253 8559269740 10699087175 11616151790 16262612506 21398174350 23232303580 29040379475 32525225012 40656531265 42796348700 58080758950 81313062530 116161517900 162626125060 203282656325 406565312650 813130625300