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552223530 = 232552111777
BaseRepresentation
bin100000111010100…
…100001100101010
31102111002212021100
4200322210030222
52112332123110
6130444022230
716453552065
oct4072441452
91374085240
10552223530
11263796791
12134b31976
138a53b5b1
14534ab8dc
1533731bc0
hex20ea432a

552223530 has 48 divisors (see below), whose sum is σ = 1438659144. Its totient is φ = 146964480.

The previous prime is 552223523. The next prime is 552223561. The reversal of 552223530 is 35322255.

It can be written as a sum of positive squares in 4 ways, for example, as 438609249 + 113614281 = 20943^2 + 10659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 552223494 and 552223503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41002 + ... + 52778.

Almost surely, 2552223530 is an apocalyptic number.

552223530 is an abundant number, since it is smaller than the sum of its proper divisors (886435614).

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

552223530 is a wasteful number, since it uses less digits than its factorization.

552223530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12311 (or 12308 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 552223530 is about 23499.4368017619. The cubic root of 552223530 is about 820.4238984170.

Adding to 552223530 its reverse (35322255), we get a palindrome (587545785).

The spelling of 552223530 in words is "five hundred fifty-two million, two hundred twenty-three thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 521 1042 1563 2605 3126 4689 5210 7815 9378 11777 15630 23445 23554 35331 46890 58885 70662 105993 117770 176655 211986 353310 529965 1059930 6135817 12271634 18407451 30679085 36814902 55222353 61358170 92037255 110444706 184074510 276111765 552223530