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689213413 = 798459059
BaseRepresentation
bin101001000101001…
…000111111100101
31210000212200001201
4221011020333211
52402414312123
6152220122501
723036134360
oct5105107745
91700780051
10689213413
11324052269
12172996431
13aca337b5
146776b0d7
15407915ad
hex29148fe5

689213413 has 4 divisors (see below), whose sum is σ = 787672480. Its totient is φ = 590754348.

The previous prime is 689213411. The next prime is 689213453. The reversal of 689213413 is 314312986.

689213413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 689213413 - 21 = 689213411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689213411) 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, 49229523 + ... + 49229536.

It is an arithmetic number, because the mean of its divisors is an integer number (196918120).

Almost surely, 2689213413 is an apocalyptic number.

It is an amenable number.

689213413 is a deficient number, since it is larger than the sum of its proper divisors (98459067).

689213413 is an equidigital number, since it uses as much as digits as its factorization.

689213413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98459066.

The product of its digits is 31104, while the sum is 37.

The square root of 689213413 is about 26252.8743759612. The cubic root of 689213413 is about 883.3196809883.

The spelling of 689213413 in words is "six hundred eighty-nine million, two hundred thirteen thousand, four hundred thirteen".

Divisors: 1 7 98459059 689213413