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689876772 = 223134422287
BaseRepresentation
bin101001000111101…
…010111100100100
31210002010101000120
4221013222330210
52403102024042
6152242241540
723044566354
oct5107527444
91702111016
10689876772
113244656a2
121730562b0
13acc06710
14678a0b64
1540872dec
hex291eaf24

689876772 has 24 divisors (see below), whose sum is σ = 1733536896. Its totient is φ = 212269728.

The previous prime is 689876767. The next prime is 689876773. The reversal of 689876772 is 277678986.

689876772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (689876773) 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, 2210988 + ... + 2211299.

It is an arithmetic number, because the mean of its divisors is an integer number (72230704).

Almost surely, 2689876772 is an apocalyptic number.

It is an amenable number.

689876772 is an abundant number, since it is smaller than the sum of its proper divisors (1043660124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689876772 is a wasteful number, since it uses less digits than its factorization.

689876772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422307 (or 4422305 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 60.

The square root of 689876772 is about 26265.5053634991. The cubic root of 689876772 is about 883.6029847069.

The spelling of 689876772 in words is "six hundred eighty-nine million, eight hundred seventy-six thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 4422287 8844574 13266861 17689148 26533722 53067444 57489731 114979462 172469193 229958924 344938386 689876772