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4080780 = 2234511229
BaseRepresentation
bin1111100100010010001100
321200022210000
433210102030
52021041110
6223244300
746454214
oct17442214
97608700
104080780
112337a50
121449690
13acb582
14783244
155591c0
hex3e448c

4080780 has 120 divisors (see below), whose sum is σ = 14026320. Its totient is φ = 984960.

The previous prime is 4080761. The next prime is 4080787. The reversal of 4080780 is 870804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080787) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17706 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (116886).

Almost surely, 24080780 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 4080780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7013160).

4080780 is an abundant number, since it is smaller than the sum of its proper divisors (9945540).

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

4080780 is a wasteful number, since it uses less digits than its factorization.

4080780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 4080780 is about 2020.0940572161. The cubic root of 4080780 is about 159.8015769452.

The spelling of 4080780 in words is "four million, eighty thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 66 81 90 99 108 110 132 135 162 165 180 198 220 229 270 297 324 330 396 405 458 495 540 594 660 687 810 891 916 990 1145 1188 1374 1485 1620 1782 1980 2061 2290 2519 2748 2970 3435 3564 4122 4455 4580 5038 5940 6183 6870 7557 8244 8910 10076 10305 12366 12595 13740 15114 17820 18549 20610 22671 24732 25190 30228 30915 37098 37785 41220 45342 50380 61830 68013 74196 75570 90684 92745 113355 123660 136026 151140 185490 204039 226710 272052 340065 370980 408078 453420 680130 816156 1020195 1360260 2040390 4080780