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67768202516 = 227197109111261
BaseRepresentation
bin111111000111010011…
…001011010100010100
320110220212211101021112
4333013103023110110
52102242124440031
651044323434152
74616234134310
oct770723132424
9213825741245
1067768202516
1126816424643
1211173525958
13650cc61b21
1433cc45cb40
151b6971262b
hexfc74cb514

67768202516 has 48 divisors (see below), whose sum is σ = 136361377152. Its totient is φ = 28867036800.

The previous prime is 67768202473. The next prime is 67768202527. The reversal of 67768202516 is 61520286776.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6012326 + ... + 6023586.

It is an arithmetic number, because the mean of its divisors is an integer number (2840862024).

Almost surely, 267768202516 is an apocalyptic number.

It is an amenable number.

67768202516 is an abundant number, since it is smaller than the sum of its proper divisors (68593174636).

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

67768202516 is a wasteful number, since it uses less digits than its factorization.

67768202516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560 (or 12558 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 67768202516 in words is "sixty-seven billion, seven hundred sixty-eight million, two hundred two thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 197 394 788 1091 1379 2182 2758 4364 5516 7637 11261 15274 22522 30548 45044 78827 157654 214927 315308 429854 859708 1504489 2218417 3008978 4436834 6017956 8873668 12285751 15528919 24571502 31057838 49143004 62115676 86000257 172000514 344001028 2420292947 4840585894 9681171788 16942050629 33884101258 67768202516