Search a number
-
+
2660916 = 2232331311
BaseRepresentation
bin1010001001101000110100
312000012002110
422021220310
51140122131
6133011020
731421526
oct12115064
95005073
102660916
111558205
12a83a70
1372220b
144d3a16
15378646
hex289a34

2660916 has 48 divisors (see below), whose sum is σ = 6709248. Its totient is φ = 818400.

The previous prime is 2660899. The next prime is 2660963. The reversal of 2660916 is 6190662.

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, 8401 + ... + 8711.

It is an arithmetic number, because the mean of its divisors is an integer number (139776).

22660916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354624).

2660916 is an abundant number, since it is smaller than the sum of its proper divisors (4048332).

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

2660916 is a wasteful number, since it uses less digits than its factorization.

2660916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 2660916 is about 1631.2314366760. The cubic root of 2660916 is about 138.5725008900.

The spelling of 2660916 in words is "two million, six hundred sixty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 23 31 46 62 69 92 93 124 138 186 276 311 372 622 713 933 1244 1426 1866 2139 2852 3732 4278 7153 8556 9641 14306 19282 21459 28612 28923 38564 42918 57846 85836 115692 221743 443486 665229 886972 1330458 2660916