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709308142 = 22231590377
BaseRepresentation
bin101010010001110…
…010111011101110
31211102200120211221
4222101302323232
52423040330032
6154214533554
723402006524
oct5221627356
91742616757
10709308142
11334427784
121796672ba
13b3c4b07a
146a2bc314
1542410597
hex2a472eee

709308142 has 8 divisors (see below), whose sum is σ = 1068734016. Its totient is φ = 353063472.

The previous prime is 709308113. The next prime is 709308143. The reversal of 709308142 is 241803907.

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

It is a junction number, because it is equal to n+sod(n) for n = 709308098 and 709308107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709308143) 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 3 ways as a sum of consecutive naturals, for example, 794743 + ... + 795634.

It is an arithmetic number, because the mean of its divisors is an integer number (133591752).

Almost surely, 2709308142 is an apocalyptic number.

709308142 is a deficient number, since it is larger than the sum of its proper divisors (359425874).

709308142 is a wasteful number, since it uses less digits than its factorization.

709308142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590602.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 709308142 is about 26632.8395406874. The cubic root of 709308142 is about 891.8222740085.

The spelling of 709308142 in words is "seven hundred nine million, three hundred eight thousand, one hundred forty-two".

Divisors: 1 2 223 446 1590377 3180754 354654071 709308142