Search a number
-
+
2813067972 = 223211131813019
BaseRepresentation
bin1010011110101100…
…0000001011000100
321021001021122210200
42213223000023010
521230121133342
61143045450500
7126465453231
oct24753001304
97231248720
102813067972
1112139a3670
12666110a30
1335aa54380
141c9866788
15116e6b94c
hexa7ac02c4

2813067972 has 144 divisors (see below), whose sum is σ = 8402896320. Its totient is φ = 782265600.

The previous prime is 2813067941. The next prime is 2813067977. The reversal of 2813067972 is 2797603182.

It is not an unprimeable number, because it can be changed into a prime (2813067977) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 930279 + ... + 933297.

Almost surely, 22813067972 is an apocalyptic number.

2813067972 is a gapful number since it is divisible by the number (22) 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 2813067972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4201448160).

2813067972 is an abundant number, since it is smaller than the sum of its proper divisors (5589828348).

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

2813067972 is a wasteful number, since it uses less digits than its factorization.

2813067972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3229 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 2813067972 is about 53038.3632100388. The cubic root of 2813067972 is about 1411.6490559688.

The spelling of 2813067972 in words is "two billion, eight hundred thirteen million, sixty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 13 18 22 26 33 36 39 44 52 66 78 99 117 132 143 156 181 198 234 286 362 396 429 468 543 572 724 858 1086 1287 1629 1716 1991 2172 2353 2574 3019 3258 3982 4706 5148 5973 6038 6516 7059 7964 9057 9412 11946 12076 14118 17919 18114 21177 23892 25883 27171 28236 33209 35838 36228 39247 42354 51766 54342 66418 71676 77649 78494 84708 99627 103532 108684 117741 132836 155298 156988 199254 232947 235482 298881 310596 353223 398508 431717 465894 470964 546439 597762 706446 863434 931788 1092878 1195524 1295151 1412892 1639317 1726868 2185756 2590302 3278634 3885453 4917951 5180604 6010829 6557268 7103707 7770906 9835902 12021658 14207414 15541812 18032487 19671804 21311121 24043316 28414828 36064974 42622242 54097461 63933363 72129948 78140777 85244484 108194922 127866726 156281554 216389844 234422331 255733452 312563108 468844662 703266993 937689324 1406533986 2813067972