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223490960 = 24572117173
BaseRepresentation
bin11010101001000…
…11001110010000
3120120112111221222
431110203032100
5424203202320
634102104212
75352433100
oct1524431620
9516474858
10223490960
11105178080
1262a1b068
13373c0694
1421979200
1514949825
hexd523390

223490960 has 240 divisors, whose sum is σ = 677849472. Its totient is φ = 67737600.

The previous prime is 223490957. The next prime is 223491001. The reversal of 223490960 is 69094322.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 223490960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3061484 + ... + 3061556.

Almost surely, 2223490960 is an apocalyptic number.

223490960 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 223490960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338924736).

223490960 is an abundant number, since it is smaller than the sum of its proper divisors (454358512).

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

223490960 is a wasteful number, since it uses less digits than its factorization.

223490960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 223490960 is about 14949.6140418407. The cubic root of 223490960 is about 606.8574022225.

The spelling of 223490960 in words is "two hundred twenty-three million, four hundred ninety thousand, nine hundred sixty".