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55286100 = 223252471307
BaseRepresentation
bin1101001011100…
…1100101010100
310212000211021100
43102321211110
5103123123400
65252550100
71240631652
oct322714524
9125024240
1055286100
11292312a1
1216622330
13b5b948c
1474b1dd2
154cc1100
hex34b9954

55286100 has 108 divisors (see below), whose sum is σ = 177113664. Its totient is φ = 14418240.

The previous prime is 55286071. The next prime is 55286107. The reversal of 55286100 is 168255.

55286100 is a `hidden beast` number, since 552 + 8 + 6 + 100 = 666.

55286100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55286107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41647 + ... + 42953.

Almost surely, 255286100 is an apocalyptic number.

55286100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55286100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88556832).

55286100 is an abundant number, since it is smaller than the sum of its proper divisors (121827564).

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

55286100 is a wasteful number, since it uses less digits than its factorization.

55286100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 55286100 is about 7435.4623259082. The cubic root of 55286100 is about 380.9535149024.

It can be divided in two parts, 5528 and 6100, that added together give a triangular number (11628 = T152).

The spelling of 55286100 in words is "fifty-five million, two hundred eighty-six thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 47 50 60 75 90 94 100 141 150 180 188 225 235 282 300 423 450 470 564 705 846 900 940 1175 1307 1410 1692 2115 2350 2614 2820 3525 3921 4230 4700 5228 6535 7050 7842 8460 10575 11763 13070 14100 15684 19605 21150 23526 26140 32675 39210 42300 47052 58815 61429 65350 78420 98025 117630 122858 130700 184287 196050 235260 245716 294075 307145 368574 392100 552861 588150 614290 737148 921435 1105722 1176300 1228580 1535725 1842870 2211444 2764305 3071450 3685740 4607175 5528610 6142900 9214350 11057220 13821525 18428700 27643050 55286100