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206674357461 = 31121343796219
BaseRepresentation
bin1100000001111011000…
…0000110110011010101
3201202110111021011200220
43000132300012303111
511341232113414321
6234540032424553
720634404024055
oct3003660066325
9652414234626
10206674357461
117a717317800
123407a9a8159
1316649019810
14a0086b1565
1555993b69c6
hex301ec06cd5

206674357461 has 24 divisors (see below), whose sum is σ = 326194246560. Its totient is φ = 115622015520.

The previous prime is 206674357433. The next prime is 206674357523. The reversal of 206674357461 is 164753476602.

It is not a de Polignac number, because 206674357461 - 25 = 206674357429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206674357061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21893391 + ... + 21902828.

It is an arithmetic number, because the mean of its divisors is an integer number (13591426940).

Almost surely, 2206674357461 is an apocalyptic number.

It is an amenable number.

206674357461 is a deficient number, since it is larger than the sum of its proper divisors (119519889099).

206674357461 is a wasteful number, since it uses less digits than its factorization.

206674357461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43796257 (or 43796246 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 206674357461 in words is "two hundred six billion, six hundred seventy-four million, three hundred fifty-seven thousand, four hundred sixty-one".

Divisors: 1 3 11 13 33 39 121 143 363 429 1573 4719 43796219 131388657 481758409 569350847 1445275227 1708052541 5299342499 6262859317 15898027497 18788577951 68891452487 206674357461