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348439231 = 749777033
BaseRepresentation
bin10100110001001…
…100001010111111
3220021122112202201
4110301030022333
51203200023411
654324132331
711430453550
oct2461141277
9807575681
10348439231
11169759608
12988370a7
135725a97a
14343c2327
15208cb3c1
hex14c4c2bf

348439231 has 4 divisors (see below), whose sum is σ = 398216272. Its totient is φ = 298662192.

The previous prime is 348439211. The next prime is 348439237. The reversal of 348439231 is 132934843.

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 348439231 - 211 = 348437183 is a prime.

It is a super-2 number, since 2×3484392312 = 242819795399742722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348439237) 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, 24888510 + ... + 24888523.

It is an arithmetic number, because the mean of its divisors is an integer number (99554068).

Almost surely, 2348439231 is an apocalyptic number.

348439231 is a deficient number, since it is larger than the sum of its proper divisors (49777041).

348439231 is an equidigital number, since it uses as much as digits as its factorization.

348439231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49777040.

The product of its digits is 62208, while the sum is 37.

The square root of 348439231 is about 18666.5270203110. The cubic root of 348439231 is about 703.6807688491.

The spelling of 348439231 in words is "three hundred forty-eight million, four hundred thirty-nine thousand, two hundred thirty-one".

Divisors: 1 7 49777033 348439231