Search a number
-
+
56988000 = 2532531583
BaseRepresentation
bin1101100101100…
…1000101100000
310222020021211200
43121121011200
5104042104000
65353241200
71261250526
oct331310540
9128207750
1056988000
112a193a23
1217103200
13ba64014
1477d6316
15500a500
hex3659160

56988000 has 144 divisors (see below), whose sum is σ = 202378176. Its totient is φ = 15187200.

The previous prime is 56987999. The next prime is 56988007. The reversal of 56988000 is 88965.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56988007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35209 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (1405404).

Almost surely, 256988000 is an apocalyptic number.

56988000 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 56988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101189088).

56988000 is an abundant number, since it is smaller than the sum of its proper divisors (145390176).

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

56988000 is a wasteful number, since it uses less digits than its factorization.

56988000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 56988000 is about 7549.0396740248. The cubic root of 56988000 is about 384.8231042067.

The spelling of 56988000 in words is "fifty-six million, nine hundred eighty-eight thousand".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 125 144 150 160 180 200 225 240 250 288 300 360 375 400 450 480 500 600 720 750 800 900 1000 1125 1200 1440 1500 1583 1800 2000 2250 2400 3000 3166 3600 4000 4500 4749 6000 6332 7200 7915 9000 9498 12000 12664 14247 15830 18000 18996 23745 25328 28494 31660 36000 37992 39575 47490 50656 56988 63320 71235 75984 79150 94980 113976 118725 126640 142470 151968 158300 189960 197875 227952 237450 253280 284940 316600 356175 379920 395750 455904 474900 569880 593625 633200 712350 759840 791500 949800 1139760 1187250 1266400 1424700 1583000 1780875 1899600 2279520 2374500 2849400 3166000 3561750 3799200 4749000 5698800 6332000 7123500 9498000 11397600 14247000 18996000 28494000 56988000