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348424501 = 1524122861
BaseRepresentation
bin10100110001001…
…000100100110101
3220021121210120011
4110301020210311
51203144041001
654323540221
711430362605
oct2461104465
9807553504
10348424501
11169749537
129882a671
1357254059
14343bac05
15208c6d51
hex14c48935

348424501 has 4 divisors (see below), whose sum is σ = 348462604. Its totient is φ = 348386400.

The previous prime is 348424487. The next prime is 348424507. The reversal of 348424501 is 105424843.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 105424843 = 659159977.

It can be written as a sum of positive squares in 2 ways, for example, as 304467601 + 43956900 = 17449^2 + 6630^2 .

It is a 3-Lehmer number, since φ(348424501) divides (348424501-1)3.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-348424501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348424507) 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, 3811 + ... + 26671.

It is an arithmetic number, because the mean of its divisors is an integer number (87115651).

Almost surely, 2348424501 is an apocalyptic number.

348424501 is the 15241-st pentagonal number.

It is an amenable number.

348424501 is a deficient number, since it is larger than the sum of its proper divisors (38103).

348424501 is a wasteful number, since it uses less digits than its factorization.

348424501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38102.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 348424501 is about 18666.1324596179. The cubic root of 348424501 is about 703.6708528553.

The spelling of 348424501 in words is "three hundred forty-eight million, four hundred twenty-four thousand, five hundred one".

Divisors: 1 15241 22861 348424501