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252412307 = 736058901
BaseRepresentation
bin11110000101110…
…00000110010011
3122120221212120222
433002320012103
51004104143212
641014023255
76153316640
oct1702700623
9576855528
10252412307
1111a531114
1270647b2b
13403a86c4
1425746dc7
151725dc72
hexf0b8193

252412307 has 4 divisors (see below), whose sum is σ = 288471216. Its totient is φ = 216353400.

The previous prime is 252412301. The next prime is 252412309. The reversal of 252412307 is 703214252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252412307 - 218 = 252150163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252412301) 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, 18029444 + ... + 18029457.

It is an arithmetic number, because the mean of its divisors is an integer number (72117804).

Almost surely, 2252412307 is an apocalyptic number.

252412307 is a deficient number, since it is larger than the sum of its proper divisors (36058909).

252412307 is an equidigital number, since it uses as much as digits as its factorization.

252412307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36058908.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 252412307 is about 15887.4890086508. The cubic root of 252412307 is about 631.9802534489.

Adding to 252412307 its reverse (703214252), we get a palindrome (955626559).

The spelling of 252412307 in words is "two hundred fifty-two million, four hundred twelve thousand, three hundred seven".

Divisors: 1 7 36058901 252412307