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16970520008925 = 3252797111081787
BaseRepresentation
bin1111011011110100000111…
…0100010001100011011101
32020002100212201101111222100
43312331001310101203131
54211021111110241200
6100032052124035313
73401036206666620
oct366750164214335
966070781344870
1016970520008925
11545318014077a
121aa1000992b39
1396140c05b342
1442953dddddb7
151e66974d4d00
hexf6f41d118dd

16970520008925 has 72 divisors (see below), whose sum is σ = 35096513082176. Its totient is φ = 7677973048320.

The previous prime is 16970520008899. The next prime is 16970520008927. The reversal of 16970520008925 is 52980002507961.

16970520008925 is a `hidden beast` number, since 1 + 6 + 97 + 0 + 520 + 0 + 0 + 8 + 9 + 25 = 666.

It is not a de Polignac number, because 16970520008925 - 210 = 16970520007901 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16970520008927) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 55388119 + ... + 55693668.

Almost surely, 216970520008925 is an apocalyptic number.

16970520008925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16970520008925 is an abundant number, since it is smaller than the sum of its proper divisors (18125993073251).

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

16970520008925 is a wasteful number, since it uses less digits than its factorization.

16970520008925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111081907 (or 111081899 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 16970520008925 in words is "sixteen trillion, nine hundred seventy billion, five hundred twenty million, eight thousand, nine hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 97 105 175 225 291 315 485 525 679 873 1455 1575 2037 2425 3395 4365 6111 7275 10185 16975 21825 30555 50925 152775 111081787 333245361 555408935 777572509 999736083 1666226805 2332717527 2777044675 3887862545 4998680415 6998152581 8331134025 10774933339 11663587635 19439312725 24993402075 32324800017 34990762905 53874666695 58317938175 75424533373 96974400051 161624000085 174953814525 226273600119 269373333475 377122666865 484872000255 678820800357 808120000425 1131368000595 1885613334325 2424360001275 3394104001785 5656840002975 16970520008925