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61048845648 = 2432760564331
BaseRepresentation
bin111000110110110010…
…110111010101010000
312211120121011200111100
4320312302313111100
52000012001030043
644013452344400
74260563424510
oct706662672520
9184517150440
1061048845648
112398853334a
12b9b9175100
1359abb3a20b
142d51cb7840
1518c4881cd3
hexe36cb7550

61048845648 has 60 divisors (see below), whose sum is σ = 195259406368. Its totient is φ = 17442527040.

The previous prime is 61048845587. The next prime is 61048845653. The reversal of 61048845648 is 84654884016.

It is a happy number.

61048845648 is a `hidden beast` number, since 6 + 104 + 88 + 456 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61048845594 and 61048845603.

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 11 ways as a sum of consecutive naturals, for example, 30281158 + ... + 30283173.

Almost surely, 261048845648 is an apocalyptic number.

It is an amenable number.

61048845648 is an abundant number, since it is smaller than the sum of its proper divisors (134210560720).

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

61048845648 is a wasteful number, since it uses less digits than its factorization.

61048845648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60564352 (or 60564343 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 61048845648 in words is "sixty-one billion, forty-eight million, eight hundred forty-five thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 60564331 121128662 181692993 242257324 363385986 423950317 484514648 545078979 726771972 847900634 969029296 1090157958 1271850951 1453543944 1695801268 2180315916 2543701902 2907087888 3391602536 3815552853 4360631832 5087403804 6783205072 7631105706 8721263664 10174807608 15262211412 20349615216 30524422824 61048845648