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70830343 = 130154443
BaseRepresentation
bin1000011100011…
…00100100000111
311221021112222001
410032030210013
5121113032333
611010050131
71520022313
oct416144407
9157245861
1070830343
1136a88981
121b879947
131189c75c
14959ab43
156341b7d
hex438c907

70830343 has 4 divisors (see below), whose sum is σ = 70886088. Its totient is φ = 70774600.

The previous prime is 70830337. The next prime is 70830349. The reversal of 70830343 is 34303807.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (70830337) and next prime (70830349).

It is a cyclic number.

It is not a de Polignac number, because 70830343 - 29 = 70829831 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 (70830349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25921 + ... + 28522.

It is an arithmetic number, because the mean of its divisors is an integer number (17721522).

Almost surely, 270830343 is an apocalyptic number.

70830343 is a deficient number, since it is larger than the sum of its proper divisors (55745).

70830343 is a wasteful number, since it uses less digits than its factorization.

70830343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55744.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 70830343 is about 8416.0764611546. The cubic root of 70830343 is about 413.7516908928.

The spelling of 70830343 in words is "seventy million, eight hundred thirty thousand, three hundred forty-three".

Divisors: 1 1301 54443 70830343