Search a number
-
+
981942080 = 26572831549
BaseRepresentation
bin111010100001110…
…011111101000000
32112102200211022012
4322201303331000
54002334121310
6241234232052
733222240620
oct7241637500
92472624265
10981942080
1146430a689
12234a25628
13128586a22
14945aa880
155b315c05
hex3a873f40

981942080 has 112 divisors (see below), whose sum is σ = 2683459200. Its totient is φ = 335259648.

The previous prime is 981942067. The next prime is 981942107. The reversal of 981942080 is 80249189.

981942080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

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, 633146 + ... + 634694.

Almost surely, 2981942080 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 981942080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341729600).

981942080 is an abundant number, since it is smaller than the sum of its proper divisors (1701517120).

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

981942080 is a wasteful number, since it uses less digits than its factorization.

981942080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1846 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 981942080 is about 31335.9550676216. The cubic root of 981942080 is about 993.9440933595.

The spelling of 981942080 in words is "nine hundred eighty-one million, nine hundred forty-two thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 283 320 448 560 566 1120 1132 1415 1549 1981 2240 2264 2830 3098 3962 4528 5660 6196 7745 7924 9056 9905 10843 11320 12392 15490 15848 18112 19810 21686 22640 24784 30980 31696 39620 43372 45280 49568 54215 61960 63392 79240 86744 90560 99136 108430 123920 126784 158480 173488 216860 247840 316960 346976 433720 438367 495680 633920 693952 867440 876734 1734880 1753468 2191835 3068569 3469760 3506936 4383670 6137138 7013872 8767340 12274276 14027744 15342845 17534680 24548552 28055488 30685690 35069360 49097104 61371380 70138720 98194208 122742760 140277440 196388416 245485520 490971040 981942080