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680383601 = 1303522167
BaseRepresentation
bin101000100011011…
…101010001110001
31202102021001211122
4220203131101301
52343134233401
6151302552025
722601110442
oct5043352161
91672231748
10680383601
1131a0712a7
1216ba38615
13aac61761
146650d2c9
153eaea21b
hex288dd471

680383601 has 4 divisors (see below), whose sum is σ = 680907072. Its totient is φ = 679860132.

The previous prime is 680383541. The next prime is 680383607. The reversal of 680383601 is 106383086.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106383086 = 253191543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-680383601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680383607) 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, 259781 + ... + 262386.

It is an arithmetic number, because the mean of its divisors is an integer number (170226768).

Almost surely, 2680383601 is an apocalyptic number.

It is an amenable number.

680383601 is a deficient number, since it is larger than the sum of its proper divisors (523471).

680383601 is a wasteful number, since it uses less digits than its factorization.

680383601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523470.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 680383601 is about 26084.1637972161. The cubic root of 680383601 is about 879.5312590596.

The spelling of 680383601 in words is "six hundred eighty million, three hundred eighty-three thousand, six hundred one".

Divisors: 1 1303 522167 680383601