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206606660244 = 223137125673151
BaseRepresentation
bin1100000001101010110…
…1110111001010010100
3201202021202212210120120
43000122231313022110
511341112301111434
6234525213431540
720632622431065
oct3003255671224
9652252783516
10206606660244
117a692089896
123406019b5b0
1316637ca61aa
149ddd6cc56c
155593493349
hex301ab77294

206606660244 has 24 divisors (see below), whose sum is σ = 485601059328. Its totient is φ = 68366193600.

The previous prime is 206606660237. The next prime is 206606660251. The reversal of 206606660244 is 442066606602.

It is an interprime number because it is at equal distance from previous prime (206606660237) and next prime (206606660251).

It is a junction number, because it is equal to n+sod(n) for n = 206606660196 and 206606660205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62834932 + ... + 62838219.

It is an arithmetic number, because the mean of its divisors is an integer number (20233377472).

Almost surely, 2206606660244 is an apocalyptic number.

It is an amenable number.

206606660244 is an abundant number, since it is smaller than the sum of its proper divisors (278994399084).

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

206606660244 is a wasteful number, since it uses less digits than its factorization.

206606660244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125673295 (or 125673293 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 206606660244 in words is "two hundred six billion, six hundred six million, six hundred sixty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 125673151 251346302 377019453 502692604 754038906 1508077812 17217221687 34434443374 51651665061 68868886748 103303330122 206606660244