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206989499522 = 21323476132879
BaseRepresentation
bin1100000011000110001…
…0010001110010000010
3201210021110021001100002
43000301202101302002
511342403302441042
6235031211200002
720645251500431
oct3006142216202
9653243231302
10206989499522
117a8691a3693
1234148446002
13166993b9800
14a0384a7118
1555b6db7132
hex3031891c82

206989499522 has 48 divisors (see below), whose sum is σ = 337841072640. Its totient is φ = 95069871936.

The previous prime is 206989499491. The next prime is 206989499531. The reversal of 206989499522 is 225994989602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71894879 + ... + 71897757.

It is an arithmetic number, because the mean of its divisors is an integer number (7038355680).

Almost surely, 2206989499522 is an apocalyptic number.

206989499522 is a deficient number, since it is larger than the sum of its proper divisors (130851573118).

206989499522 is a wasteful number, since it uses less digits than its factorization.

206989499522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 65.

The spelling of 206989499522 in words is "two hundred six billion, nine hundred eighty-nine million, four hundred ninety-nine thousand, five hundred twenty-two".

Divisors: 1 2 13 26 169 338 347 613 694 1226 2879 4511 5758 7969 9022 15938 37427 58643 74854 103597 117286 207194 212711 425422 486551 973102 999013 1764827 1998026 2765243 3529654 5530486 12987169 22942751 25974338 35948159 45885502 71896318 168833197 298255763 337666394 596511526 612394969 1224789938 7961134597 15922269194 103494749761 206989499522