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51210623030452 = 22131373262011251
BaseRepresentation
bin10111010010011011001101…
…11111101001010010110100
320201022200120100222020100121
423221031212333221102310
523203013323443433302
6300525500242221324
713533562656405334
oct1351154677512264
9221280510866317
1051210623030452
1115354337708196
1258b0b66054844
1322761aaac8602
14c908709150c4
155dc18c274e37
hex2e9366fe94b4

51210623030452 has 24 divisors (see below), whose sum is σ = 90544800421152. Its totient is φ = 25341728100000.

The previous prime is 51210623030419. The next prime is 51210623030473. The reversal of 51210623030452 is 25403032601215.

It is a super-2 number, since 2×512106230304522 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130810174 + ... + 131201077.

It is an arithmetic number, because the mean of its divisors is an integer number (3772700017548).

Almost surely, 251210623030452 is an apocalyptic number.

It is an amenable number.

51210623030452 is a deficient number, since it is larger than the sum of its proper divisors (39334177390700).

51210623030452 is a wasteful number, since it uses less digits than its factorization.

51210623030452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262011759 (or 262011757 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 51210623030452 its reverse (25403032601215), we get a palindrome (76613655631667).

The spelling of 51210623030452 in words is "fifty-one trillion, two hundred ten billion, six hundred twenty-three million, thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 131 262 373 524 746 1492 48863 97726 195452 262011251 524022502 1048045004 34323473881 68646947762 97730196623 137293895524 195460393246 390920786492 12802655757613 25605311515226 51210623030452