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252338439 = 384112813
BaseRepresentation
bin11110000101001…
…10000100000111
3122120211010021010
433002212010013
51004044312224
641012253303
76152561403
oct1702460407
9576733233
10252338439
1111a490671
1270611233
1340380bb2
1425728103
1517246e29
hexf0a6107

252338439 has 4 divisors (see below), whose sum is σ = 336451256. Its totient is φ = 168225624.

The previous prime is 252338431. The next prime is 252338447. The reversal of 252338439 is 934833252.

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

It is an interprime number because it is at equal distance from previous prime (252338431) and next prime (252338447).

It is not a de Polignac number, because 252338439 - 23 = 252338431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252338397 and 252338406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252338431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42056404 + ... + 42056409.

It is an arithmetic number, because the mean of its divisors is an integer number (84112814).

Almost surely, 2252338439 is an apocalyptic number.

252338439 is a deficient number, since it is larger than the sum of its proper divisors (84112817).

252338439 is an equidigital number, since it uses as much as digits as its factorization.

252338439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84112816.

The product of its digits is 155520, while the sum is 39.

The square root of 252338439 is about 15885.1641162438. The cubic root of 252338439 is about 631.9185981456.

The spelling of 252338439 in words is "two hundred fifty-two million, three hundred thirty-eight thousand, four hundred thirty-nine".

Divisors: 1 3 84112813 252338439