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206551466433213 = 311431079743139627
BaseRepresentation
bin101110111101101110000010…
…110010001101101010111101
31000002100010102211120000112020
4232331232002302031222331
5204033114400401330323
62011144233404030353
761335564614213526
oct5675560262155275
91002303384500466
10206551466433213
115a8a4a9201a220
121b1bb0842323b9
138b33948278105
14390120400d84d
1518d2d27118ae3
hexbbdb82c8dabd

206551466433213 has 64 divisors (see below), whose sum is σ = 310332644278272. Its totient is φ = 121115457247680.

The previous prime is 206551466433203. The next prime is 206551466433227. The reversal of 206551466433213 is 312334664155602.

It is not a de Polignac number, because 206551466433213 - 25 = 206551466433181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206551466433203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1479239106 + ... + 1479378732.

It is an arithmetic number, because the mean of its divisors is an integer number (4848947566848).

Almost surely, 2206551466433213 is an apocalyptic number.

It is an amenable number.

206551466433213 is a deficient number, since it is larger than the sum of its proper divisors (103781177845059).

206551466433213 is a wasteful number, since it uses less digits than its factorization.

206551466433213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149534.

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 206551466433213 in words is "two hundred six trillion, five hundred fifty-one billion, four hundred sixty-six million, four hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 3 11 33 43 107 129 321 473 1177 1419 3531 4601 9743 13803 29229 50611 107173 139627 151833 321519 418881 418949 1042501 1256847 1535897 3127503 4607691 4608439 6003961 11467511 13825317 14940089 18011883 34402533 44820267 44827543 66043571 134482629 164340979 198130713 493022937 493102973 642423827 1360385861 1479308919 1927271481 4081157583 7066662097 14964244471 21199986291 44892733413 58496592023 145561287127 175489776069 436683861381 643462512253 1601174158397 1930387536759 4803522475191 6259135346461 18777406039383 68850488811071 206551466433213