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56105600 = 275289197
BaseRepresentation
bin1101011000000…
…1101010000000
310220120110102012
43112001222000
5103330334400
65322312052
71250614115
oct326015200
9126513365
1056105600
1129740a71
1216958628
13b8154a5
14764690c
154dd3d35
hex3581a80

56105600 has 96 divisors (see below), whose sum is σ = 140867100. Its totient is φ = 22077440.

The previous prime is 56105591. The next prime is 56105611. The reversal of 56105600 is 650165.

It can be written as a sum of positive squares in 6 ways, for example, as 28815424 + 27290176 = 5368^2 + 5224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284702 + ... + 284898.

Almost surely, 256105600 is an apocalyptic number.

56105600 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 56105600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70433550).

56105600 is an abundant number, since it is smaller than the sum of its proper divisors (84761500).

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

56105600 is a wasteful number, since it uses less digits than its factorization.

56105600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56105600 is about 7490.3671472098. The cubic root of 56105600 is about 382.8265683293.

Adding to 56105600 its reverse (650165), we get a palindrome (56755765).

The spelling of 56105600 in words is "fifty-six million, one hundred five thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 89 100 128 160 178 197 200 320 356 394 400 445 640 712 788 800 890 985 1424 1576 1600 1780 1970 2225 2848 3152 3200 3560 3940 4450 4925 5696 6304 7120 7880 8900 9850 11392 12608 14240 15760 17533 17800 19700 25216 28480 31520 35066 35600 39400 56960 63040 70132 71200 78800 87665 126080 140264 142400 157600 175330 280528 284800 315200 350660 438325 561056 630400 701320 876650 1122112 1402640 1753300 2244224 2805280 3506600 5610560 7013200 11221120 14026400 28052800 56105600