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53010065780 = 2257478056241
BaseRepresentation
bin110001010111101001…
…010110100101110100
312001211100210100121122
4301113221112211310
51332031034101110
640204045403112
73554432060510
oct612751264564
9161740710548
1053010065780
1120532889021
12a334b69498
134cca569a39
1427cc3d7140
1515a3c76255
hexc57a56974

53010065780 has 48 divisors (see below), whose sum is σ = 129931070976. Its totient is φ = 17788177920.

The previous prime is 53010065749. The next prime is 53010065807. The reversal of 53010065780 is 8756001035.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 53010065780.

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, 4021541 + ... + 4034700.

It is an arithmetic number, because the mean of its divisors is an integer number (2706897312).

Almost surely, 253010065780 is an apocalyptic number.

It is an amenable number.

53010065780 is an abundant number, since it is smaller than the sum of its proper divisors (76921005196).

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

53010065780 is a wasteful number, since it uses less digits than its factorization.

53010065780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056304 (or 8056302 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 53010065780 in words is "fifty-three billion, ten million, sixty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 70 94 140 188 235 329 470 658 940 1316 1645 3290 6580 8056241 16112482 32224964 40281205 56393687 80562410 112787374 161124820 225574748 281968435 378643327 563936870 757286654 1127873740 1514573308 1893216635 2650503289 3786433270 5301006578 7572866540 10602013156 13252516445 26505032890 53010065780