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61060556060 = 22571273434227
BaseRepresentation
bin111000110111011111…
…100010010100011100
312211121102012122011022
4320313133202110130
52000023000243220
644014551343312
74261065106610
oct706737422434
9184542178138
1061060556060
1123994101579
12ba01081b38
1359b13aa45a
142d53685340
1518c58e6925
hexe377e251c

61060556060 has 48 divisors (see below), whose sum is σ = 147699277824. Its totient is φ = 20770198848.

The previous prime is 61060556041. The next prime is 61060556071. The reversal of 61060556060 is 6065506016.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 61060556060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699334 + ... + 1734893.

It is an arithmetic number, because the mean of its divisors is an integer number (3077068288).

Almost surely, 261060556060 is an apocalyptic number.

It is an amenable number.

61060556060 is an abundant number, since it is smaller than the sum of its proper divisors (86638721764).

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

61060556060 is a wasteful number, since it uses less digits than its factorization.

61060556060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434370 (or 3434368 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 61060556060 in words is "sixty-one billion, sixty million, five hundred fifty-six thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 127 140 254 508 635 889 1270 1778 2540 3556 4445 8890 17780 3434227 6868454 13736908 17171135 24039589 34342270 48079178 68684540 96158356 120197945 240395890 436146829 480791780 872293658 1744587316 2180734145 3053027803 4361468290 6106055606 8722936580 12212111212 15265139015 30530278030 61060556060