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680144359 = 1477946021
BaseRepresentation
bin101000100010100…
…010110111100111
31202101210220122211
4220202202313213
52343104104414
6151253504251
722566063106
oct5042426747
91671726584
10680144359
11319a18584
1216b942087
13aaba98ab
146648a03d
153ea9e3c4
hex288a2de7

680144359 has 4 divisors (see below), whose sum is σ = 680205160. Its totient is φ = 680083560.

The previous prime is 680144351. The next prime is 680144369. The reversal of 680144359 is 953441086.

680144359 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 brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 680144359 - 23 = 680144351 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 (680144351) 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, 8232 + ... + 37789.

It is an arithmetic number, because the mean of its divisors is an integer number (170051290).

Almost surely, 2680144359 is an apocalyptic number.

680144359 is a deficient number, since it is larger than the sum of its proper divisors (60801).

680144359 is a wasteful number, since it uses less digits than its factorization.

680144359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60800.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 680144359 is about 26079.5774313926. The cubic root of 680144359 is about 879.4281576693.

The spelling of 680144359 in words is "six hundred eighty million, one hundred forty-four thousand, three hundred fifty-nine".

Divisors: 1 14779 46021 680144359