Search a number
-
+
105072105216 = 2831310524049
BaseRepresentation
bin110000111011011001…
…0010001011100000000
3101001012122200222120110
41201312302101130000
53210141424331331
6120134111511320
710406533105161
oct1416662213400
9331178628513
10105072105216
11406195118a1
1218444528540
139ba6596130
14512a931768
152aee685946
hex1876c91700

105072105216 has 72 divisors (see below), whose sum is σ = 301156214800. Its totient is φ = 32329875456.

The previous prime is 105072105167. The next prime is 105072105239. The reversal of 105072105216 is 612501270501.

105072105216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1050721052162 (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5252041 + ... + 5272008.

Almost surely, 2105072105216 is an apocalyptic number.

105072105216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105072105216 is an abundant number, since it is smaller than the sum of its proper divisors (196084109584).

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

105072105216 is a wasteful number, since it uses less digits than its factorization.

105072105216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524081 (or 10524067 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 105072105216 its reverse (612501270501), we get a palindrome (717573375717).

The spelling of 105072105216 in words is "one hundred five billion, seventy-two million, one hundred five thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 256 312 384 416 624 768 832 1248 1664 2496 3328 4992 9984 10524049 21048098 31572147 42096196 63144294 84192392 126288588 136812637 168384784 252577176 273625274 336769568 410437911 505154352 547250548 673539136 820875822 1010308704 1094501096 1347078272 1641751644 2020617408 2189002192 2694156544 3283503288 4041234816 4378004384 6567006576 8082469632 8756008768 13134013152 17512017536 26268026304 35024035072 52536052608 105072105216