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56123200 = 265275011
BaseRepresentation
bin1101011000010…
…1111101000000
310220121100120001
43112011331000
5103331420300
65322525344
71251016330
oct326057500
9126540501
1056123200
1129753211
1216966854
13b8204c3
14764d0c0
154dd916a
hex3585f40

56123200 has 84 divisors (see below), whose sum is σ = 157857952. Its totient is φ = 19238400.

The previous prime is 56123173. The next prime is 56123201. The reversal of 56123200 is 232165.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56123201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8695 + ... + 13705.

Almost surely, 256123200 is an apocalyptic number.

56123200 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 56123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78928976).

56123200 is an abundant number, since it is smaller than the sum of its proper divisors (101734752).

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

56123200 is a wasteful number, since it uses less digits than its factorization.

56123200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 5025 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 56123200 is about 7491.5418973667. The cubic root of 56123200 is about 382.8665942993.

Adding to 56123200 its reverse (232165), we get a palindrome (56355365).

It can be divided in two parts, 56 and 123200, that added together give a triangular number (123256 = T496).

The spelling of 56123200 in words is "fifty-six million, one hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 140 160 175 200 224 280 320 350 400 448 560 700 800 1120 1400 1600 2240 2800 5011 5600 10022 11200 20044 25055 35077 40088 50110 70154 80176 100220 125275 140308 160352 175385 200440 250550 280616 320704 350770 400880 501100 561232 701540 801760 876925 1002200 1122464 1403080 1603520 1753850 2004400 2244928 2806160 3507700 4008800 5612320 7015400 8017600 11224640 14030800 28061600 56123200