Search a number
-
+
680205505382 = 21326161750207
BaseRepresentation
bin10011110010111110110…
…10000101001101100110
32102000201200122212212122
421321133122011031212
542121030102133012
61240252044345542
7100100061253454
oct11713732051546
92360650585778
10680205505382
11242523302937
12ab9b35452b2
134c1b2526430
1424cca4359d4
1512a613d1e72
hex9e5f685366

680205505382 has 8 divisors (see below), whose sum is σ = 1098793508736. Its totient is φ = 313941002472.

The previous prime is 680205505381. The next prime is 680205505391. The reversal of 680205505382 is 283505502086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680205505381) 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, 13080875078 + ... + 13080875129.

It is an arithmetic number, because the mean of its divisors is an integer number (137349188592).

Almost surely, 2680205505382 is an apocalyptic number.

680205505382 is a deficient number, since it is larger than the sum of its proper divisors (418588003354).

680205505382 is a wasteful number, since it uses less digits than its factorization.

680205505382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26161750222.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 680205505382 in words is "six hundred eighty billion, two hundred five million, five hundred five thousand, three hundred eighty-two".

Divisors: 1 2 13 26 26161750207 52323500414 340102752691 680205505382