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684925941 = 3757112
BaseRepresentation
bin101000110100110…
…010001111110101
31202201210211202110
4220310302033311
52400320112231
6151544201233
722654526430
oct5064621765
91681724673
10684925941
11321693aa7
12171469219
13abb9212b
1466d72817
15401e6046
hex28d323f5

684925941 has 12 divisors (see below), whose sum is σ = 1043879456. Its totient is φ = 391317720.

The previous prime is 684925919. The next prime is 684925949. The reversal of 684925941 is 149529486.

It is not a de Polignac number, because 684925941 - 25 = 684925909 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 (684925949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117076 + ... + 122786.

Almost surely, 2684925941 is an apocalyptic number.

It is an amenable number.

684925941 is a deficient number, since it is larger than the sum of its proper divisors (358953515).

684925941 is an frugal number, since it uses more digits than its factorization.

684925941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11432 (or 5721 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 684925941 is about 26171.0897938928. The cubic root of 684925941 is about 881.4842123410.

The spelling of 684925941 in words is "six hundred eighty-four million, nine hundred twenty-five thousand, nine hundred forty-one".

Divisors: 1 3 7 21 5711 17133 39977 119931 32615521 97846563 228308647 684925941