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223120000 = 27542789
BaseRepresentation
bin11010100110010…
…00101010000000
3120112211200002201
431103020222000
5424104320000
634050122544
75346326425
oct1523105200
9515750081
10223120000
11104a443a4
1262880454
13372c088c
14218bdd4c
15148c496a
hexd4c8a80

223120000 has 80 divisors (see below), whose sum is σ = 555642450. Its totient is φ = 89216000.

The previous prime is 223119977. The next prime is 223120013. The reversal of 223120000 is 21322.

223120000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 6677056 + 216442944 = 2584^2 + 14712^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2231200003 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78606 + ... + 81394.

Almost surely, 2223120000 is an apocalyptic number.

223120000 is a gapful number since it is divisible by the number (20) 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 223120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277821225).

223120000 is an abundant number, since it is smaller than the sum of its proper divisors (332522450).

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

223120000 is an frugal number, since it uses more digits than its factorization.

223120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 223120000 is about 14937.2018798703. The cubic root of 223120000 is about 606.5214535239.

Adding to 223120000 its reverse (21322), we get a palindrome (223141322).

It can be divided in two parts, 2 and 23120000, that multiplied together give a square (46240000 = 68002).

The spelling of 223120000 in words is "two hundred twenty-three million, one hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 2789 3200 4000 5000 5578 8000 10000 11156 13945 16000 20000 22312 27890 40000 44624 55780 69725 80000 89248 111560 139450 178496 223120 278900 348625 356992 446240 557800 697250 892480 1115600 1394500 1743125 1784960 2231200 2789000 3486250 4462400 5578000 6972500 8924800 11156000 13945000 22312000 27890000 44624000 55780000 111560000 223120000