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648072814101 = 31918773605641
BaseRepresentation
bin10010110111001000010…
…01100101111000010101
32021221210022100001001120
421123210021211320111
541104223120022401
61213415345314153
764551564012666
oct11334411457025
92257708301046
10648072814101
1122a934232329
12a5726335959
134916136853b
142351ca7136d
1511cd0434836
hex96e4265e15

648072814101 has 16 divisors (see below), whose sum is σ = 909625832640. Its totient is φ = 409286666880.

The previous prime is 648072814087. The next prime is 648072814127. The reversal of 648072814101 is 101418270846.

It is not a de Polignac number, because 648072814101 - 29 = 648072813589 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 (648072814001) by changing a digit.

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, 767241 + ... + 1372881.

It is an arithmetic number, because the mean of its divisors is an integer number (56851614540).

Almost surely, 2648072814101 is an apocalyptic number.

It is an amenable number.

648072814101 is a deficient number, since it is larger than the sum of its proper divisors (261553018539).

648072814101 is a wasteful number, since it uses less digits than its factorization.

648072814101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624436.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 648072814101 in words is "six hundred forty-eight billion, seventy-two million, eight hundred fourteen thousand, one hundred one".

Divisors: 1 3 19 57 18773 56319 356687 605641 1070061 1816923 11507179 34521537 11369698493 34109095479 216024271367 648072814101