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252340415 = 5471073789
BaseRepresentation
bin11110000101001…
…10100010111111
3122120211012222022
433002212202333
51004044343130
641012310355
76152600225
oct1702464277
9576735868
10252340415
1111a4920a8
12706123bb
1340381a72
1425728b15
15172477e5
hexf0a68bf

252340415 has 8 divisors (see below), whose sum is σ = 309251520. Its totient is φ = 197576992.

The previous prime is 252340411. The next prime is 252340427. The reversal of 252340415 is 514043252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252340415 - 22 = 252340411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252340411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536660 + ... + 537129.

It is an arithmetic number, because the mean of its divisors is an integer number (38656440).

Almost surely, 2252340415 is an apocalyptic number.

252340415 is a deficient number, since it is larger than the sum of its proper divisors (56911105).

252340415 is a wasteful number, since it uses less digits than its factorization.

252340415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073841.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 252340415 is about 15885.2263125207. The cubic root of 252340415 is about 631.9202476075.

Adding to 252340415 its reverse (514043252), we get a palindrome (766383667).

The spelling of 252340415 in words is "two hundred fifty-two million, three hundred forty thousand, four hundred fifteen".

Divisors: 1 5 47 235 1073789 5368945 50468083 252340415