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348750019 = 1720514707
BaseRepresentation
bin10100110010011…
…000000011000011
3220022020100002101
4110302120003003
51203240000034
654334531231
711433216622
oct2462300303
9808210071
10348750019
11169951062
1298966b17
1357339277
14344636b9
152093d514
hex14c980c3

348750019 has 4 divisors (see below), whose sum is σ = 369264744. Its totient is φ = 328235296.

The previous prime is 348750013. The next prime is 348750023. The reversal of 348750019 is 910057843.

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 348750019 - 25 = 348749987 is a prime.

It is a super-2 number, since 2×3487500192 = 243253151505000722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 348750019.

It is not an unprimeable number, because it can be changed into a prime (348750013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10257337 + ... + 10257370.

It is an arithmetic number, because the mean of its divisors is an integer number (92316186).

Almost surely, 2348750019 is an apocalyptic number.

348750019 is a deficient number, since it is larger than the sum of its proper divisors (20514725).

348750019 is a wasteful number, since it uses less digits than its factorization.

348750019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514724.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 348750019 is about 18674.8499056887. The cubic root of 348750019 is about 703.8899211012.

The spelling of 348750019 in words is "three hundred forty-eight million, seven hundred fifty thousand, nineteen".

Divisors: 1 17 20514707 348750019