Search a number
-
+
206526101145 = 357131731287099
BaseRepresentation
bin1100000001010111101…
…0100011011010011001
3201202002011021222021020
43000111322203122121
511340431140214040
6234513215033053
720630623615650
oct3002572433231
9652064258236
10206526101145
117a650666621
123403920b789
13166243ab4a0
149dd2b1c197
15558b37dcd0
hex3015ea3699

206526101145 has 128 divisors (see below), whose sum is σ = 444513484800. Its totient is φ = 79376855040.

The previous prime is 206526101081. The next prime is 206526101153. The reversal of 206526101145 is 541101625602.

It is not a de Polignac number, because 206526101145 - 26 = 206526101081 is a prime.

It is a super-2 number, since 2×2065261011452 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 575806 + ... + 862904.

It is an arithmetic number, because the mean of its divisors is an integer number (3472761600).

Almost surely, 2206526101145 is an apocalyptic number.

It is an amenable number.

206526101145 is an abundant number, since it is smaller than the sum of its proper divisors (237987383655).

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

206526101145 is a wasteful number, since it uses less digits than its factorization.

206526101145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287175.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 206526101145 its reverse (541101625602), we get a palindrome (747627726747).

The spelling of 206526101145 in words is "two hundred six billion, five hundred twenty-six million, one hundred one thousand, one hundred forty-five".

Divisors: 1 3 5 7 13 15 17 21 31 35 39 51 65 85 91 93 105 119 155 195 217 221 255 273 357 403 455 465 527 595 651 663 1085 1105 1209 1365 1547 1581 1785 2015 2635 2821 3255 3315 3689 4641 6045 6851 7735 7905 8463 11067 14105 18445 20553 23205 34255 42315 47957 55335 102765 143871 239785 287099 719355 861297 1435495 2009693 3732287 4306485 4880683 6029079 8900069 10048465 11196861 14642049 18661435 24403415 26126009 26700207 30145395 34164781 44500345 55984305 62300483 63448879 73210245 78378027 102494343 115700897 130630045 133501035 151301173 170823905 186901449 190346637 311502415 317244395 347102691 391890135 444142153 453903519 512471715 578504485 756505865 809906279 934507245 951733185 1059108211 1332426459 1735513455 1966915249 2220710765 2269517595 2429718837 3177324633 4049531395 5295541055 5900745747 6662132295 9834576245 12148594185 13768406743 15886623165 29503728735 41305220229 68842033715 206526101145