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343938817 = 1997186619
BaseRepresentation
bin10100100000000…
…001011100000001
3212222011220100201
4110200001130001
51201022020232
654043445201
711344301035
oct2440013401
9788156321
10343938817
11167165362
1297226801
13563433c1
14339701c5
15202dcbe7
hex14801701

343938817 has 8 divisors (see below), whose sum is σ = 365775200. Its totient is φ = 322475904.

The previous prime is 343938799. The next prime is 343938853. The reversal of 343938817 is 718839343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 343938817 - 27 = 343938689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343938017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91467 + ... + 95152.

It is an arithmetic number, because the mean of its divisors is an integer number (45721900).

Almost surely, 2343938817 is an apocalyptic number.

It is an amenable number.

343938817 is a deficient number, since it is larger than the sum of its proper divisors (21836383).

343938817 is a wasteful number, since it uses less digits than its factorization.

343938817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186735.

The product of its digits is 435456, while the sum is 46.

The square root of 343938817 is about 18545.5875345053. The cubic root of 343938817 is about 700.6380692261.

The spelling of 343938817 in words is "three hundred forty-three million, nine hundred thirty-eight thousand, eight hundred seventeen".

Divisors: 1 19 97 1843 186619 3545761 18102043 343938817