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552226220 = 225713303421
BaseRepresentation
bin100000111010100…
…100110110101100
31102111002222221222
4200322210312230
52112332214340
6130444042512
716453562660
oct4072446654
91374088858
10552226220
11263798807
12134b33438
138a53c8a0
14534ac8a0
15337328b5
hex20ea4dac

552226220 has 48 divisors (see below), whose sum is σ = 1427297088. Its totient is φ = 174769920.

The previous prime is 552226187. The next prime is 552226223. The reversal of 552226220 is 22622255.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 552226220.

It is not an unprimeable number, because it can be changed into a prime (552226223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149891 + ... + 153530.

It is an arithmetic number, because the mean of its divisors is an integer number (29735356).

Almost surely, 2552226220 is an apocalyptic number.

It is an amenable number.

552226220 is an abundant number, since it is smaller than the sum of its proper divisors (875070868).

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

552226220 is a wasteful number, since it uses less digits than its factorization.

552226220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303450 (or 303448 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 552226220 is about 23499.4940371064. The cubic root of 552226220 is about 820.4252305688.

Adding to 552226220 its reverse (22622255), we get a palindrome (574848475).

The spelling of 552226220 in words is "five hundred fifty-two million, two hundred twenty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 303421 606842 1213684 1517105 2123947 3034210 3944473 4247894 6068420 7888946 8495788 10619735 15777892 19722365 21239470 27611311 39444730 42478940 55222622 78889460 110445244 138056555 276113110 552226220