Search a number
-
+
2678260 = 2251310301
BaseRepresentation
bin1010001101110111110100
312001001212211
422031313310
51141201020
6133223204
731523224
oct12156764
95031784
102678260
11156a242
12a91b04
1372a090
144da084
1537d85a
hex28ddf4

2678260 has 24 divisors (see below), whose sum is σ = 6057576. Its totient is φ = 988800.

The previous prime is 2678251. The next prime is 2678311. The reversal of 2678260 is 628762.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 2232036 = 668^2 + 1494^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4891 + ... + 5410.

It is an arithmetic number, because the mean of its divisors is an integer number (252399).

22678260 is an apocalyptic number.

2678260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2678260 is an abundant number, since it is smaller than the sum of its proper divisors (3379316).

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

2678260 is a wasteful number, since it uses less digits than its factorization.

2678260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10323 (or 10321 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2678260 is about 1636.5390310041. The cubic root of 2678260 is about 138.8729235574.

The spelling of 2678260 in words is "two million, six hundred seventy-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 10301 20602 41204 51505 103010 133913 206020 267826 535652 669565 1339130 2678260