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709217492 = 221710429669
BaseRepresentation
bin101010010001011…
…100110011010100
31211102111222111112
4222101130303110
52423024424432
6154212554152
723401151324
oct5221346324
91742458445
10709217492
11334375665
12179622958
13b3c18a29
146a297284
15423e37b2
hex2a45ccd4

709217492 has 12 divisors (see below), whose sum is σ = 1314138420. Its totient is φ = 333749376.

The previous prime is 709217491. The next prime is 709217519. The reversal of 709217492 is 294712907.

It can be written as a sum of positive squares in 2 ways, for example, as 193655056 + 515562436 = 13916^2 + 22706^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709217491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5214767 + ... + 5214902.

It is an arithmetic number, because the mean of its divisors is an integer number (109511535).

Almost surely, 2709217492 is an apocalyptic number.

It is an amenable number.

709217492 is a deficient number, since it is larger than the sum of its proper divisors (604920928).

709217492 is a wasteful number, since it uses less digits than its factorization.

709217492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429690 (or 10429688 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 709217492 is about 26631.1376399883. The cubic root of 709217492 is about 891.7842805852.

The spelling of 709217492 in words is "seven hundred nine million, two hundred seventeen thousand, four hundred ninety-two".

Divisors: 1 2 4 17 34 68 10429669 20859338 41718676 177304373 354608746 709217492