Search a number
-
+
831682080 = 2535521391
BaseRepresentation
bin110001100100100…
…111011000100000
32010221221211100000
4301210213120200
53200402311310
6214305500000
726416116045
oct6144473040
92127854300
10831682080
11397510069
121b2641600
131033c6698
147c6551cc
154d0344c0
hex31927620

831682080 has 144 divisors (see below), whose sum is σ = 2943368064. Its totient is φ = 221771520.

The previous prime is 831682073. The next prime is 831682081. The reversal of 831682080 is 80286138.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (831682081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28185 + ... + 49575.

It is an arithmetic number, because the mean of its divisors is an integer number (20440056).

Almost surely, 2831682080 is an apocalyptic number.

831682080 is a gapful number since it is divisible by the number (80) 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 831682080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471684032).

831682080 is an abundant number, since it is smaller than the sum of its proper divisors (2111685984).

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

831682080 is a wasteful number, since it uses less digits than its factorization.

831682080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21421 (or 21401 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 831682080 is about 28838.8987307075. The cubic root of 831682080 is about 940.4140623384.

The spelling of 831682080 in words is "eight hundred thirty-one million, six hundred eighty-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 81 90 96 108 120 135 144 160 162 180 216 240 243 270 288 324 360 405 432 480 486 540 648 720 810 864 972 1080 1215 1296 1440 1620 1944 2160 2430 2592 3240 3888 4320 4860 6480 7776 9720 12960 19440 21391 38880 42782 64173 85564 106955 128346 171128 192519 213910 256692 320865 342256 385038 427820 513384 577557 641730 684512 770076 855640 962595 1026768 1155114 1283460 1540152 1711280 1732671 1925190 2053536 2310228 2566920 2887785 3080304 3422560 3465342 3850380 4620456 5133840 5198013 5775570 6160608 6930684 7700760 8663355 9240912 10267680 10396026 11551140 13861368 15401520 17326710 18481824 20792052 23102280 25990065 27722736 30803040 34653420 41584104 46204560 51980130 55445472 69306840 83168208 92409120 103960260 138613680 166336416 207920520 277227360 415841040 831682080