Search a number
-
+
2069801580 = 22357115379107
BaseRepresentation
bin111101101011110…
…1010101001101100
312100020200210222210
41323113222221230
513214332122310
6541215010420
7102202010640
oct17327525154
95306623883
102069801580
11972392620
12499209a10
1326ca76782
14158c68c20
15c1a9e820
hex7b5eaa6c

2069801580 has 384 divisors, whose sum is σ = 7524679680. Its totient is φ = 412738560.

The previous prime is 2069801563. The next prime is 2069801581. The reversal of 2069801580 is 851089602.

It is not an unprimeable number, because it can be changed into a prime (2069801581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19343887 + ... + 19343993.

It is an arithmetic number, because the mean of its divisors is an integer number (19595520).

Almost surely, 22069801580 is an apocalyptic number.

2069801580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2069801580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3762339840).

2069801580 is an abundant number, since it is smaller than the sum of its proper divisors (5454878100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2069801580 is a wasteful number, since it uses less digits than its factorization.

2069801580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 2069801580 is about 45495.0720408266. The cubic root of 2069801580 is about 1274.4111760142.

The spelling of 2069801580 in words is "two billion, sixty-nine million, eight hundred one thousand, five hundred eighty".