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347430761 = 413712
BaseRepresentation
bin10100101101010…
…101111101101001
3220012202022101222
4110231111331221
51202420241021
654250351425
711416053446
oct2455257551
9805668358
10347430761
1116912a967
129842b575
1356c96942
14341dc9cd
152077c6ab
hex14b55f69

347430761 has 12 divisors (see below), whose sum is σ = 361202772. Its totient is φ = 334182800.

The previous prime is 347430737. The next prime is 347430773. The reversal of 347430761 is 167034743.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 66667225 + 280763536 = 8165^2 + 16756^2 .

It is not a de Polignac number, because 347430761 - 26 = 347430697 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347430781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4893356 + ... + 4893426.

It is an arithmetic number, because the mean of its divisors is an integer number (30100231).

Almost surely, 2347430761 is an apocalyptic number.

It is an amenable number.

347430761 is a deficient number, since it is larger than the sum of its proper divisors (13772011).

347430761 is an frugal number, since it uses more digits than its factorization.

347430761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 347430761 is about 18639.4946551670. The cubic root of 347430761 is about 703.0012369913.

The spelling of 347430761 in words is "three hundred forty-seven million, four hundred thirty thousand, seven hundred sixty-one".

Divisors: 1 41 71 1681 2911 5041 68921 119351 206681 4893391 8473921 347430761