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553351220 = 225137201953
BaseRepresentation
bin100000111110110…
…111100000110100
31102120020011011122
4200332313200310
52113124214340
6130524123112
716466256602
oct4076674064
91376204148
10553351220
11264396a64
12135396498
138a844976
14536c2872
15338a5db5
hex20fb7834

553351220 has 24 divisors (see below), whose sum is σ = 1170525384. Its totient is φ = 219723776.

The previous prime is 553351213. The next prime is 553351237. The reversal of 553351220 is 22153355.

553351220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104080804 + 449270416 = 10202^2 + 21196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 553351220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98237 + ... + 103716.

It is an arithmetic number, because the mean of its divisors is an integer number (48771891).

Almost surely, 2553351220 is an apocalyptic number.

It is an amenable number.

553351220 is an abundant number, since it is smaller than the sum of its proper divisors (617174164).

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

553351220 is a wasteful number, since it uses less digits than its factorization.

553351220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202099 (or 202097 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 553351220 is about 23523.4185440807. The cubic root of 553351220 is about 820.9819784455.

The spelling of 553351220 in words is "five hundred fifty-three million, three hundred fifty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 201953 403906 807812 1009765 2019530 4039060 27667561 55335122 110670244 138337805 276675610 553351220