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2055132786 = 237315872689
BaseRepresentation
bin111101001111110…
…1101011001110010
312022020002120012010
41322133231121302
513202103222121
6535532343350
7101633224530
oct17237553162
95266076163
102055132786
11965083753
12494314b56
13269a0bb05
14156d2b150
15c0653376
hex7a7ed672

2055132786 has 64 divisors (see below), whose sum is σ = 4859043840. Its totient is φ = 567060480.

The previous prime is 2055132767. The next prime is 2055132787. The reversal of 2055132786 is 6872315502.

It is not an unprimeable number, because it can be changed into a prime (2055132787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 762930 + ... + 765618.

It is an arithmetic number, because the mean of its divisors is an integer number (75922560).

Almost surely, 22055132786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055132786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2429521920).

2055132786 is an abundant number, since it is smaller than the sum of its proper divisors (2803911054).

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

2055132786 is a wasteful number, since it uses less digits than its factorization.

2055132786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2055132786 is about 45333.5723939775. The cubic root of 2055132786 is about 1271.3934291499.

The spelling of 2055132786 in words is "two billion, fifty-five million, one hundred thirty-two thousand, seven hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 587 651 1174 1302 1761 2689 3522 4109 5378 8067 8218 12327 16134 18197 18823 24654 36394 37646 54591 56469 83359 109182 112938 127379 166718 250077 254758 382137 500154 583513 764274 1167026 1578443 1750539 3156886 3501078 4735329 9470658 11049101 22098202 33147303 48931733 66294606 97863466 146795199 293590398 342522131 685044262 1027566393 2055132786