Search a number
-
+
3106980 = 2232541421
BaseRepresentation
bin1011110110100010100100
312211211222100
423312202210
51243410410
6150332100
735260152
oct13664244
95754870
103106980
111832358
12105a030
1384a266
145ac3d2
154158c0
hex2f68a4

3106980 has 72 divisors (see below), whose sum is σ = 9677304. Its totient is φ = 806400.

The previous prime is 3106969. The next prime is 3106981. The reversal of 3106980 is 896013.

3106980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 304704 + 2802276 = 552^2 + 1674^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3106981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7170 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (134407).

Almost surely, 23106980 is an apocalyptic number.

3106980 is a gapful number since it is divisible by the number (30) 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 3106980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4838652).

3106980 is an abundant number, since it is smaller than the sum of its proper divisors (6570324).

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

3106980 is a wasteful number, since it uses less digits than its factorization.

3106980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3106980 is about 1762.6627584425. The cubic root of 3106980 is about 145.9193274222.

The spelling of 3106980 in words is "three million, one hundred six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 41 45 60 82 90 123 164 180 205 246 369 410 421 492 615 738 820 842 1230 1263 1476 1684 1845 2105 2460 2526 3690 3789 4210 5052 6315 7380 7578 8420 12630 15156 17261 18945 25260 34522 37890 51783 69044 75780 86305 103566 155349 172610 207132 258915 310698 345220 517830 621396 776745 1035660 1553490 3106980