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223193992 = 2374219467
BaseRepresentation
bin11010100110110…
…10101110001000
3120112222102121011
431103122232020
5424114201432
634051453304
75350055230
oct1523325610
9515872534
10223193992
11104a94a4a
12628b7234
1337318468
14218dccc0
15148db847
hexd4dab88

223193992 has 32 divisors (see below), whose sum is σ = 479459520. Its totient is φ = 95417280.

The previous prime is 223193983. The next prime is 223194029. The reversal of 223193992 is 299391322.

223193992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231939923 (a number of 26 digits) contains 333 as substring.

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, 18843 + ... + 28309.

It is an arithmetic number, because the mean of its divisors is an integer number (14983110).

Almost surely, 2223193992 is an apocalyptic number.

It is an amenable number.

223193992 is an abundant number, since it is smaller than the sum of its proper divisors (256265528).

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

223193992 is a wasteful number, since it uses less digits than its factorization.

223193992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9901 (or 9897 counting only the distinct ones).

The product of its digits is 52488, while the sum is 40.

The square root of 223193992 is about 14939.6784436614. The cubic root of 223193992 is about 606.5884918523.

The spelling of 223193992 in words is "two hundred twenty-three million, one hundred ninety-three thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 56 421 842 1684 2947 3368 5894 9467 11788 18934 23576 37868 66269 75736 132538 265076 530152 3985607 7971214 15942428 27899249 31884856 55798498 111596996 223193992