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552720100 = 225223512
BaseRepresentation
bin100000111100011…
…101011011100100
31102112001002102211
4200330131123210
52112444020400
6130502413204
716461020602
oct4074353344
91375032384
10552720100
11263aa5879
12135131204
138a68361a
145359a872
15337cddba
hex20f1d6e4

552720100 has 27 divisors (see below), whose sum is σ = 1199913001. Its totient is φ = 220994000.

The previous prime is 552720073. The next prime is 552720101. The reversal of 552720100 is 1027255.

The square root of 552720100 is 23510.

It is a perfect power (a square), and thus also a powerful number.

552720100 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 only one way, i.e., 198979236 + 353740864 = 14106^2 + 18808^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552720101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 233925 + ... + 236275.

Almost surely, 2552720100 is an apocalyptic number.

552720100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

552720100 is the 23510-th square number.

It is an amenable number.

552720100 is an abundant number, since it is smaller than the sum of its proper divisors (647192901).

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

552720100 is an equidigital number, since it uses as much as digits as its factorization.

552720100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The cubic root of 552720100 is about 820.6697383838.

Adding to 552720100 its reverse (1027255), we get a palindrome (553747355).

The spelling of 552720100 in words is "five hundred fifty-two million, seven hundred twenty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2351 4702 9404 11755 23510 47020 58775 117550 235100 5527201 11054402 22108804 27636005 55272010 110544020 138180025 276360050 552720100