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348068139 = 33726311923
BaseRepresentation
bin10100101111110…
…001100100101011
3220020221200201120
4110233301210223
51203101140024
654312150323
711424346626
oct2457614453
9806850646
10348068139
11169525821
12986983a3
135715aaa3
1434326dbd
1520856479
hex14bf192b

348068139 has 16 divisors (see below), whose sum is σ = 478486272. Its totient is φ = 224896608.

The previous prime is 348068099. The next prime is 348068159. The reversal of 348068139 is 931860843.

It is a happy number.

It is not a de Polignac number, because 348068139 - 28 = 348067883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348068139.

It is not an unprimeable number, because it can be changed into a prime (348068159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23232 + ... + 35154.

It is an arithmetic number, because the mean of its divisors is an integer number (29905392).

Almost surely, 2348068139 is an apocalyptic number.

348068139 is a deficient number, since it is larger than the sum of its proper divisors (130418133).

348068139 is a wasteful number, since it uses less digits than its factorization.

348068139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12226.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 348068139 is about 18656.5843336877. The cubic root of 348068139 is about 703.4308706001.

The spelling of 348068139 in words is "three hundred forty-eight million, sixty-eight thousand, one hundred thirty-nine".

Divisors: 1 3 37 111 263 789 9731 11923 29193 35769 441151 1323453 3135749 9407247 116022713 348068139