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342731605 = 5139493139
BaseRepresentation
bin10100011011011…
…010101101010101
3212212220120101011
4110123122231111
51200214402410
654001532221
711331112336
oct2433325525
9785816334
10342731605
11166510367
1296944071
135600ca88
143373828d
152015018a
hex146dab55

342731605 has 8 divisors (see below), whose sum is σ = 414237600. Its totient is φ = 272212176.

The previous prime is 342731603. The next prime is 342731677. The reversal of 342731605 is 506137243.

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

It is a cyclic number.

It is not a de Polignac number, because 342731605 - 21 = 342731603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342731603) 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, 245875 + ... + 247264.

It is an arithmetic number, because the mean of its divisors is an integer number (51779700).

Almost surely, 2342731605 is an apocalyptic number.

It is an amenable number.

342731605 is a deficient number, since it is larger than the sum of its proper divisors (71505995).

342731605 is a wasteful number, since it uses less digits than its factorization.

342731605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493283.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 342731605 is about 18513.0117755054. The cubic root of 342731605 is about 699.8173707237.

Adding to 342731605 its reverse (506137243), we get a palindrome (848868848).

The spelling of 342731605 in words is "three hundred forty-two million, seven hundred thirty-one thousand, six hundred five".

Divisors: 1 5 139 695 493139 2465695 68546321 342731605