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552127220 = 22530789923
BaseRepresentation
bin100000111010001…
…100101011110100
31102110220222011022
4200322030223310
52112321032340
6130442000312
716453001231
oct4072145364
91373828138
10552127220
11263730397
12134aa6098
138a5067c8
1453484788
15337133b5
hex20e8caf4

552127220 has 24 divisors (see below), whose sum is σ = 1163256864. Its totient is φ = 220129056.

The previous prime is 552127211. The next prime is 552127229. The reversal of 552127220 is 22721255.

It is an interprime number because it is at equal distance from previous prime (552127211) and next prime (552127229).

It is a self number, because there is not a number n which added to its sum of digits gives 552127220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552127229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38822 + ... + 51101.

It is an arithmetic number, because the mean of its divisors is an integer number (48469036).

Almost surely, 2552127220 is an apocalyptic number.

It is an amenable number.

552127220 is an abundant number, since it is smaller than the sum of its proper divisors (611129644).

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

552127220 is a wasteful number, since it uses less digits than its factorization.

552127220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90239 (or 90237 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 552127220 is about 23497.3875143600. The cubic root of 552127220 is about 820.3762005704.

Adding to 552127220 its reverse (22721255), we get a palindrome (574848475).

The spelling of 552127220 in words is "five hundred fifty-two million, one hundred twenty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 307 614 1228 1535 3070 6140 89923 179846 359692 449615 899230 1798460 27606361 55212722 110425444 138031805 276063610 552127220