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680315413 = 2329578931
BaseRepresentation
bin101000100011001…
…100101000010101
31202102010121022011
4220203030220111
52343130043123
6151301304221
722600404601
oct5043145025
91672117264
10680315413
1131a025048
1216ba05071
13aac396cb
14664d2501
153ead4e0d
hex288cca15

680315413 has 4 divisors (see below), whose sum is σ = 709894368. Its totient is φ = 650736460.

The previous prime is 680315351. The next prime is 680315423. The reversal of 680315413 is 314513086.

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 680315413 - 225 = 646760981 is a prime.

It is a super-2 number, since 2×6803154132 = 925658122330721138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680315423) 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, 14789443 + ... + 14789488.

It is an arithmetic number, because the mean of its divisors is an integer number (177473592).

Almost surely, 2680315413 is an apocalyptic number.

It is an amenable number.

680315413 is a deficient number, since it is larger than the sum of its proper divisors (29578955).

680315413 is a wasteful number, since it uses less digits than its factorization.

680315413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29578954.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 680315413 is about 26082.8566878707. The cubic root of 680315413 is about 879.5018758896.

Adding to 680315413 its reverse (314513086), we get a palindrome (994828499).

The spelling of 680315413 in words is "six hundred eighty million, three hundred fifteen thousand, four hundred thirteen".

Divisors: 1 23 29578931 680315413