Search a number
-
+
2813606380 = 2251361717539
BaseRepresentation
bin1010011110110100…
…0011100111101100
321021002022000100201
42213231003213230
521230240401010
61143105203244
7126503155024
oct24755034754
97232260321
102813606380
111214231132
12666330524
1335abb2460
141c9966a84
1511702623a
hexa7b439ec

2813606380 has 48 divisors (see below), whose sum is σ = 6373755360. Its totient is φ = 1037127168.

The previous prime is 2813606377. The next prime is 2813606417. The reversal of 2813606380 is 836063182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151651 + ... + 169189.

It is an arithmetic number, because the mean of its divisors is an integer number (132786570).

Almost surely, 22813606380 is an apocalyptic number.

2813606380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813606380 is an abundant number, since it is smaller than the sum of its proper divisors (3560148980).

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

2813606380 is a wasteful number, since it uses less digits than its factorization.

2813606380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18178 (or 18176 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2813606380 is about 53043.4386140265. The cubic root of 2813606380 is about 1411.7391112238.

The spelling of 2813606380 in words is "two billion, eight hundred thirteen million, six hundred six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 617 1234 2468 3085 6170 8021 12340 16042 17539 32084 35078 40105 70156 80210 87695 160420 175390 228007 350780 456014 912028 1140035 2280070 4560140 10821563 21643126 43286252 54107815 108215630 140680319 216431260 281360638 562721276 703401595 1406803190 2813606380