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55671517180 = 22515031185189
BaseRepresentation
bin110011110110010001…
…111110111111111100
312022200211210002120201
4303312101332333330
51403003402022210
641324121453244
74010410042156
oct636621767774
9168624702521
1055671517180
1121679135934
12a958341224
135332a77456
1429a1a73ad6
1516ac74453a
hexcf647effc

55671517180 has 24 divisors (see below), whose sum is σ = 116918595360. Its totient is φ = 22267005120.

The previous prime is 55671517147. The next prime is 55671517247. The reversal of 55671517180 is 8171517655.

It is a self number, because there is not a number n which added to its sum of digits gives 55671517180.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208026 + ... + 393214.

It is an arithmetic number, because the mean of its divisors is an integer number (4871608140).

Almost surely, 255671517180 is an apocalyptic number.

It is an amenable number.

55671517180 is an abundant number, since it is smaller than the sum of its proper divisors (61247078180).

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

55671517180 is a wasteful number, since it uses less digits than its factorization.

55671517180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200229 (or 200227 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 46.

The spelling of 55671517180 in words is "fifty-five billion, six hundred seventy-one million, five hundred seventeen thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 15031 30062 60124 75155 150310 185189 300620 370378 740756 925945 1851890 3703780 2783575859 5567151718 11134303436 13917879295 27835758590 55671517180