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223424530 = 25723731901
BaseRepresentation
bin11010101000100…
…11000000010010
3120120102010211121
431110103000102
5424144041110
634100432454
75352035320
oct1524230022
9516363747
10223424530
1110513217a
12629a872a
1337399384
142195cd10
1514934cda
hexd513012

223424530 has 64 divisors (see below), whose sum is σ = 486425088. Its totient is φ = 72230400.

The previous prime is 223424503. The next prime is 223424543. The reversal of 223424530 is 35424322.

It is a junction number, because it is equal to n+sod(n) for n = 223424495 and 223424504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116580 + ... + 118480.

It is an arithmetic number, because the mean of its divisors is an integer number (7600392).

Almost surely, 2223424530 is an apocalyptic number.

223424530 is an abundant number, since it is smaller than the sum of its proper divisors (263000558).

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

223424530 is a wasteful number, since it uses less digits than its factorization.

223424530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 223424530 is about 14947.3920802259. The cubic root of 223424530 is about 606.7972692428.

Adding to 223424530 its reverse (35424322), we get a palindrome (258848852).

The spelling of 223424530 in words is "two hundred twenty-three million, four hundred twenty-four thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 73 115 146 161 230 322 365 511 730 805 1022 1610 1679 1901 2555 3358 3802 5110 8395 9505 11753 13307 16790 19010 23506 26614 43723 58765 66535 87446 117530 133070 138773 218615 277546 306061 437230 612122 693865 971411 1387730 1530305 1942822 3060610 3191779 4857055 6383558 9714110 15958895 22342453 31917790 44684906 111712265 223424530