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680543341 = 3121953011
BaseRepresentation
bin101000100100000…
…100010001101101
31202102120011221221
4220210010101231
52343204341331
6151310223341
722602344242
oct5044042155
91672504857
10680543341
1131a170315
1216bab4b51
13aacb938a
14665515c9
153eb2c711
hex2890446d

680543341 has 4 divisors (see below), whose sum is σ = 702496384. Its totient is φ = 658590300.

The previous prime is 680543333. The next prime is 680543359. The reversal of 680543341 is 143345086.

It is a happy number.

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 680543341 - 23 = 680543333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680543297 and 680543306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680543041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10976475 + ... + 10976536.

It is an arithmetic number, because the mean of its divisors is an integer number (175624096).

Almost surely, 2680543341 is an apocalyptic number.

It is an amenable number.

680543341 is a deficient number, since it is larger than the sum of its proper divisors (21953043).

680543341 is a wasteful number, since it uses less digits than its factorization.

680543341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21953042.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 680543341 is about 26087.2256286482. The cubic root of 680543341 is about 879.6000855909.

The spelling of 680543341 in words is "six hundred eighty million, five hundred forty-three thousand, three hundred forty-one".

Divisors: 1 31 21953011 680543341