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16940179240 = 2351636174211
BaseRepresentation
bin11111100011011011…
…01001111100101000
31121201120221021020221
433301231221330220
5234143141213430
611440542455424
71136536101445
oct176155517450
947646837227
1016940179240
117203320436
123349294574
13179c7a9bca
14b69b8a9cc
1569230c57a
hex3f1b69f28

16940179240 has 64 divisors (see below), whose sum is σ = 38420516160. Its totient is φ = 6721989120.

The previous prime is 16940179237. The next prime is 16940179279. The reversal of 16940179240 is 4297104961.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4020735 + ... + 4024945.

It is an arithmetic number, because the mean of its divisors is an integer number (600320565).

Almost surely, 216940179240 is an apocalyptic number.

16940179240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16940179240 is an abundant number, since it is smaller than the sum of its proper divisors (21480336920).

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

16940179240 is a wasteful number, since it uses less digits than its factorization.

16940179240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002 (or 4998 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 16940179240 in words is "sixteen billion, nine hundred forty million, one hundred seventy-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 163 326 617 652 815 1234 1304 1630 2468 3085 3260 4211 4936 6170 6520 8422 12340 16844 21055 24680 33688 42110 84220 100571 168440 201142 402284 502855 686393 804568 1005710 1372786 2011420 2598187 2745572 3431965 4022840 5196374 5491144 6863930 10392748 12990935 13727860 20785496 25981870 27455720 51963740 103927480 423504481 847008962 1694017924 2117522405 3388035848 4235044810 8470089620 16940179240