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55321954108 = 22137100952471
BaseRepresentation
bin110011100001011100…
…100000011100111100
312021210111000110012021
4303201130200130330
51401244410012413
641225313245524
73665633564641
oct634134403474
9167714013167
1055321954108
1121509889a33
12a87b2638a4
1352a85150b5
14296b47bdc8
15168bbe518d
hexce172073c

55321954108 has 12 divisors (see below), whose sum is σ = 97520087952. Its totient is φ = 27459071840.

The previous prime is 55321954099. The next prime is 55321954109. The reversal of 55321954108 is 80145912355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55321954109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50475688 + ... + 50476783.

It is an arithmetic number, because the mean of its divisors is an integer number (8126673996).

Almost surely, 255321954108 is an apocalyptic number.

It is an amenable number.

55321954108 is a deficient number, since it is larger than the sum of its proper divisors (42198133844).

55321954108 is a wasteful number, since it uses less digits than its factorization.

55321954108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100952612 (or 100952610 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 55321954108 in words is "fifty-five billion, three hundred twenty-one million, nine hundred fifty-four thousand, one hundred eight".

Divisors: 1 2 4 137 274 548 100952471 201904942 403809884 13830488527 27660977054 55321954108