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342707839 = 10710213137
BaseRepresentation
bin10100011011010…
…100111001111111
3212212212100202221
4110123110321333
51200213122324
654001230211
711330653135
oct2433247177
9785770687
10342707839
111664a4521
1296932367
1356002006
143372d755
15201480e4
hex146d4e7f

342707839 has 8 divisors (see below), whose sum is σ = 346359888. Its totient is φ = 339064320.

The previous prime is 342707803. The next prime is 342707863. The reversal of 342707839 is 938707243.

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 342707839 - 29 = 342707327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342707795 and 342707804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342701839) 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, 107679 + ... + 110815.

It is an arithmetic number, because the mean of its divisors is an integer number (43294986).

Almost surely, 2342707839 is an apocalyptic number.

342707839 is a deficient number, since it is larger than the sum of its proper divisors (3652049).

342707839 is a wasteful number, since it uses less digits than its factorization.

342707839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 342707839 is about 18512.3698915077. The cubic root of 342707839 is about 699.8011945635.

The spelling of 342707839 in words is "three hundred forty-two million, seven hundred seven thousand, eight hundred thirty-nine".

Divisors: 1 107 1021 3137 109247 335659 3202877 342707839