[go: up one dir, main page]

Search a number
-
+
1940940 = 2232541263
BaseRepresentation
bin111011001110111001100
310122121110200
413121313030
5444102230
6105333500
722332501
oct7316714
93577420
101940940
111106291
12797290
1352c5b1
143874a8
15285160
hex1d9dcc

1940940 has 72 divisors (see below), whose sum is σ = 6054048. Its totient is φ = 503040.

The previous prime is 1940929. The next prime is 1940957. The reversal of 1940940 is 490491.

It is an Ulam 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 23 ways as a sum of consecutive naturals, for example, 7249 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

21940940 is an apocalyptic number.

1940940 is a gapful number since it is divisible by the number (10) 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 1940940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3027024).

1940940 is an abundant number, since it is smaller than the sum of its proper divisors (4113108).

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

1940940 is a wasteful number, since it uses less digits than its factorization.

1940940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 314 counting only the distinct ones).

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

The square root of 1940940 is about 1393.1762271874. The cubic root of 1940940 is about 124.7395108737.

The spelling of 1940940 in words is "one million, nine hundred forty thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 41 45 60 82 90 123 164 180 205 246 263 369 410 492 526 615 738 789 820 1052 1230 1315 1476 1578 1845 2367 2460 2630 3156 3690 3945 4734 5260 7380 7890 9468 10783 11835 15780 21566 23670 32349 43132 47340 53915 64698 97047 107830 129396 161745 194094 215660 323490 388188 485235 646980 970470 1940940