Search a number
-
+
212806076371 = 71931173298349
BaseRepresentation
bin1100011000110000111…
…0110000011111010011
3202100021211011202202021
43012030032300133103
511441311323420441
6241432312432311
721242350542430
oct3061416603723
9670254152667
10212806076371
1182283533999
12352b03a8697
13170b5483565
14a42abaab87
15580786c3d1
hex318c3b07d3

212806076371 has 32 divisors (see below), whose sum is σ = 265794048000. Its totient is φ = 166263373440.

The previous prime is 212806076359. The next prime is 212806076377. The reversal of 212806076371 is 173670608212.

212806076371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212806076371 - 211 = 212806074323 is a prime.

It is a super-2 number, since 2×2128060763712 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212806076377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564105 + ... + 862453.

It is an arithmetic number, because the mean of its divisors is an integer number (8306064000).

Almost surely, 2212806076371 is an apocalyptic number.

212806076371 is a deficient number, since it is larger than the sum of its proper divisors (52987971629).

212806076371 is a wasteful number, since it uses less digits than its factorization.

212806076371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298579.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 212806076371 in words is "two hundred twelve billion, eight hundred six million, seventy-six thousand, three hundred seventy-one".

Divisors: 1 7 19 31 133 173 217 589 1211 3287 4123 5363 23009 37541 101897 298349 713279 2088443 5668631 9248819 39680417 51614377 64741733 175727561 361300639 980673163 1230092927 1600045687 6864712141 11200319809 30400868053 212806076371