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2680260 = 22351131131
BaseRepresentation
bin1010001110010111000100
312001011121220
422032113010
51141232020
6133240340
731532112
oct12162704
95034556
102680260
1115707a0
12a930b0
1372ac6b
144daab2
1537e240
hex28e5c4

2680260 has 96 divisors (see below), whose sum is σ = 8515584. Its totient is φ = 624000.

The previous prime is 2680241. The next prime is 2680261. The reversal of 2680260 is 620862.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2680260.

It is not an unprimeable number, because it can be changed into a prime (2680261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20395 + ... + 20525.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

22680260 is an apocalyptic number.

2680260 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 2680260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4257792).

2680260 is an abundant number, since it is smaller than the sum of its proper divisors (5835324).

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

2680260 is a wasteful number, since it uses less digits than its factorization.

2680260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2680260 is about 1637.1499625874. The cubic root of 2680260 is about 138.9074829032.

It can be divided in two parts, 26802 and 60, that added together give a palindrome (26862).

The spelling of 2680260 in words is "two million, six hundred eighty thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 31 33 44 55 60 62 66 93 110 124 131 132 155 165 186 220 262 310 330 341 372 393 465 524 620 655 660 682 786 930 1023 1310 1364 1441 1572 1705 1860 1965 2046 2620 2882 3410 3930 4061 4092 4323 5115 5764 6820 7205 7860 8122 8646 10230 12183 14410 16244 17292 20305 20460 21615 24366 28820 40610 43230 44671 48732 60915 81220 86460 89342 121830 134013 178684 223355 243660 268026 446710 536052 670065 893420 1340130 2680260