Search a number
-
+
2015413140 = 2235132583863
BaseRepresentation
bin111100000100000…
…1100001110010100
312012110100121002010
41320020030032110
513111421210030
6531553144220
7100641505026
oct17010141624
95173317063
102015413140
119447147a4
12482b5b070
13261712a70
1415194c016
15bbe096b0
hex7820c394

2015413140 has 48 divisors (see below), whose sum is σ = 6077248128. Its totient is φ = 496101504.

The previous prime is 2015413093. The next prime is 2015413177. The reversal of 2015413140 is 413145102.

It is a congruent number.

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, 1291152 + ... + 1292711.

It is an arithmetic number, because the mean of its divisors is an integer number (126609336).

Almost surely, 22015413140 is an apocalyptic number.

2015413140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015413140 is an abundant number, since it is smaller than the sum of its proper divisors (4061834988).

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

2015413140 is a wasteful number, since it uses less digits than its factorization.

2015413140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583888 (or 2583886 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2015413140 is about 44893.3529600987. The cubic root of 2015413140 is about 1263.1493276484.

Adding to 2015413140 its reverse (413145102), we get a palindrome (2428558242).

The spelling of 2015413140 in words is "two billion, fifteen million, four hundred thirteen thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 2583863 5167726 7751589 10335452 12919315 15503178 25838630 31006356 33590219 38757945 51677260 67180438 77515890 100770657 134360876 155031780 167951095 201541314 335902190 403082628 503853285 671804380 1007706570 2015413140