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17992746064 = 242834918093
BaseRepresentation
bin10000110000011100…
…111000010001010000
31201102221112012111101
4100300130320101100
5243322120333224
612133222554144
71204606550416
oct206034702120
951387465441
1017992746064
1176a3488477
1235a1898954
131909890907
14c2989d2b6
15704924044
hex430738450

17992746064 has 40 divisors (see below), whose sum is σ = 35059711392. Its totient is φ = 8945220480.

The previous prime is 17992746049. The next prime is 17992746073. The reversal of 17992746064 is 46064729971.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 17992745996 and 17992746014.

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, 2219202 + ... + 2227294.

Almost surely, 217992746064 is an apocalyptic number.

It is an amenable number.

17992746064 is a deficient number, since it is larger than the sum of its proper divisors (17066965328).

17992746064 is a wasteful number, since it uses less digits than its factorization.

17992746064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875 (or 8869 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 17992746064 in words is "seventeen billion, nine hundred ninety-two million, seven hundred forty-six thousand, sixty-four".

Divisors: 1 2 4 8 16 283 491 566 982 1132 1964 2264 3928 4528 7856 8093 16186 32372 64744 129488 138953 277906 555812 1111624 2223248 2290319 3973663 4580638 7947326 9161276 15894652 18322552 31789304 36645104 63578608 1124546629 2249093258 4498186516 8996373032 17992746064