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530002251 = 33175919571
BaseRepresentation
bin11111100101110…
…011000101001011
31100221021220102000
4133211303011023
52041140033001
6124331442043
716063642032
oct3745630513
91327256360
10530002251
11252199599
121295b6323
1385a5b0cc
1450565719
15317e2a86
hex1f97314b

530002251 has 32 divisors (see below), whose sum is σ = 845510400. Its totient is φ = 326897280.

The previous prime is 530002243. The next prime is 530002261. The reversal of 530002251 is 152200035.

It is a happy number.

It is not a de Polignac number, because 530002251 - 23 = 530002243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530002201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17296 + ... + 36866.

It is an arithmetic number, because the mean of its divisors is an integer number (26422200).

Almost surely, 2530002251 is an apocalyptic number.

530002251 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

530002251 is a deficient number, since it is larger than the sum of its proper divisors (315508149).

530002251 is a wasteful number, since it uses less digits than its factorization.

530002251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19656 (or 19650 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 530002251 is about 23021.7777549867. Note that the first 4 decimals coincide. The cubic root of 530002251 is about 809.2683791535.

Adding to 530002251 its reverse (152200035), we get a palindrome (682202286).

The spelling of 530002251 in words is "five hundred thirty million, two thousand, two hundred fifty-one".

Divisors: 1 3 9 17 27 51 59 153 177 459 531 1003 1593 3009 9027 19571 27081 58713 176139 332707 528417 998121 1154689 2994363 3464067 8983089 10392201 19629713 31176603 58889139 176667417 530002251