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206540551453411 = 7317513221393473
BaseRepresentation
bin101110111101100011111000…
…001100110111101011100011
31000002022002021011002121002001
4232331203320030313223203
5204032430022133002121
62011135230334104431
761335030256343140
oct5675437014675343
91002262234077061
10206540551453411
115a8a03a088135a
121b1b8b3894b117
138b328c8b4ab96
14390088a5513c7
1518d28d8c70991
hexbbd8f8337ae3

206540551453411 has 32 divisors (see below), whose sum is σ = 244061559668736. Its totient is φ = 171042278400000.

The previous prime is 206540551453403. The next prime is 206540551453469. The reversal of 206540551453411 is 114354155045602.

It is not a de Polignac number, because 206540551453411 - 23 = 206540551453403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206540551453811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524719971 + ... + 525113443.

It is an arithmetic number, because the mean of its divisors is an integer number (7626923739648).

Almost surely, 2206540551453411 is an apocalyptic number.

206540551453411 is a deficient number, since it is larger than the sum of its proper divisors (37521008215325).

206540551453411 is a wasteful number, since it uses less digits than its factorization.

206540551453411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397483.

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 206540551453411 in words is "two hundred six trillion, five hundred forty billion, five hundred fifty-one million, four hundred fifty-three thousand, four hundred eleven".

Divisors: 1 7 31 217 751 3221 5257 22547 23281 99851 162967 393473 698957 2418971 2754311 12197663 16932797 74988101 85383641 295498223 524916707 1267376533 2068487561 8871635731 9160444913 39288672523 64123114391 275020707661 951799776283 6662598433981 29505793064773 206540551453411