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223376820 = 22353722947
BaseRepresentation
bin11010101000001…
…11010110110100
3120120022201101120
431110013112310
5424141024240
634055423540
75351446242
oct1524072664
9516281346
10223376820
111050aa347
1262984bb0
1337380744
1421949792
1514925ad0
hexd5075b4

223376820 has 24 divisors (see below), whose sum is σ = 625455264. Its totient is φ = 59567136.

The previous prime is 223376801. The next prime is 223376833. The reversal of 223376820 is 28673322.

223376820 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861414 + ... + 1861533.

It is an arithmetic number, because the mean of its divisors is an integer number (26060636).

Almost surely, 2223376820 is an apocalyptic number.

223376820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223376820 is an abundant number, since it is smaller than the sum of its proper divisors (402078444).

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

223376820 is a wasteful number, since it uses less digits than its factorization.

223376820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722959 (or 3722957 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 223376820 is about 14945.7960644457. The cubic root of 223376820 is about 606.7540744055.

The spelling of 223376820 in words is "two hundred twenty-three million, three hundred seventy-six thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3722947 7445894 11168841 14891788 18614735 22337682 37229470 44675364 55844205 74458940 111688410 223376820