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552722981 = 2272434903
BaseRepresentation
bin100000111100011…
…110001000100101
31102112001020101112
4200330132020211
52112444113411
6130502434405
716461032156
oct4074361045
91375036345
10552722981
11263aa7a58
12135132a05
138a684a25
145359b92d
15337ceb8b
hex20f1e225

552722981 has 4 divisors (see below), whose sum is σ = 555158112. Its totient is φ = 550287852.

The previous prime is 552722971. The next prime is 552723011. The reversal of 552722981 is 189227255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 552722981 - 26 = 552722917 is a prime.

It is a super-2 number, since 2×5527229812 = 611005387451052722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552722941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217225 + ... + 1217678.

It is an arithmetic number, because the mean of its divisors is an integer number (138789528).

Almost surely, 2552722981 is an apocalyptic number.

It is an amenable number.

552722981 is a deficient number, since it is larger than the sum of its proper divisors (2435131).

552722981 is a wasteful number, since it uses less digits than its factorization.

552722981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435130.

The product of its digits is 100800, while the sum is 41.

The square root of 552722981 is about 23510.0612717194. The cubic root of 552722981 is about 820.6711642685.

The spelling of 552722981 in words is "five hundred fifty-two million, seven hundred twenty-two thousand, nine hundred eighty-one".

Divisors: 1 227 2434903 552722981