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55093934880 = 2532538259677
BaseRepresentation
bin110011010011110110…
…101011101100100000
312021012120221212121200
4303103312223230200
51400313021404010
641150530121200
73660164501565
oct632366535440
9167176855550
1055093934880
11214020a9796
12a816a20200
1352701ca58a
14294908486c
151676ba3cc0
hexcd3dabb20

55093934880 has 72 divisors (see below), whose sum is σ = 188008057692. Its totient is φ = 14691715584.

The previous prime is 55093934867. The next prime is 55093934981. The reversal of 55093934880 is 8843939055.

55093934880 is a `hidden beast` number, since 5 + 509 + 3 + 93 + 48 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52516138896 + 2577795984 = 229164^2 + 50772^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×550939348802 (a number of 22 digits) contains 22 as substring.

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, 19128399 + ... + 19131278.

Almost surely, 255093934880 is an apocalyptic number.

It is an amenable number.

55093934880 is an abundant number, since it is smaller than the sum of its proper divisors (132914122812).

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

55093934880 is a wasteful number, since it uses less digits than its factorization.

55093934880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38259698 (or 38259687 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 55093934880 in words is "fifty-five billion, ninety-three million, nine hundred thirty-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 38259677 76519354 114779031 153038708 191298385 229558062 306077416 344337093 382596770 459116124 573895155 612154832 688674186 765193540 918232248 1147790310 1224309664 1377348372 1530387080 1721685465 1836464496 2295580620 2754696744 3060774160 3443370930 3672928992 4591161240 5509393488 6121548320 6886741860 9182322480 11018786976 13773483720 18364644960 27546967440 55093934880