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252430333 = 192699253
BaseRepresentation
bin11110000101111…
…00011111111101
3122120222210022121
433002330133331
51004110232313
641014242541
76153423331
oct1702743775
9576883277
10252430333
1111a543711
1270656451
13403b397c
142574d7c1
151726428d
hexf0bc7fd

252430333 has 6 divisors (see below), whose sum is σ = 266415774. Its totient is φ = 239144184.

The previous prime is 252430327. The next prime is 252430349. The reversal of 252430333 is 333034252.

It can be written as a sum of positive squares in only one way, i.e., 175377049 + 77053284 = 13243^2 + 8778^2 .

It is a de Polignac number, because none of the positive numbers 2k-252430333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252430298 and 252430307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252430363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349266 + ... + 349987.

It is an arithmetic number, because the mean of its divisors is an integer number (44402629).

Almost surely, 2252430333 is an apocalyptic number.

It is an amenable number.

252430333 is a deficient number, since it is larger than the sum of its proper divisors (13985441).

252430333 is an equidigital number, since it uses as much as digits as its factorization.

252430333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699291 (or 699272 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 25.

The square root of 252430333 is about 15888.0563002527. The cubic root of 252430333 is about 631.9952973599.

Adding to 252430333 its reverse (333034252), we get a palindrome (585464585).

The spelling of 252430333 in words is "two hundred fifty-two million, four hundred thirty thousand, three hundred thirty-three".

Divisors: 1 19 361 699253 13285807 252430333