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17989412996 = 224795688367
BaseRepresentation
bin10000110000010000…
…001010100010000100
31201102201020212101102
4100300100022202010
5243320242203441
612133023315232
71204536326132
oct206020124204
951381225342
1017989412996
1176a1611275
1235a074bb18
131908c94799
14c29272752
157044b669b
hex43040a884

17989412996 has 12 divisors (see below), whose sum is σ = 32151291648. Its totient is φ = 8803329672.

The previous prime is 17989412981. The next prime is 17989412999. The reversal of 17989412996 is 69921498971.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (17989412999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47843996 + ... + 47844371.

It is an arithmetic number, because the mean of its divisors is an integer number (2679274304).

Almost surely, 217989412996 is an apocalyptic number.

It is an amenable number.

17989412996 is a deficient number, since it is larger than the sum of its proper divisors (14161878652).

17989412996 is a wasteful number, since it uses less digits than its factorization.

17989412996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95688418 (or 95688416 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 65.

The spelling of 17989412996 in words is "seventeen billion, nine hundred eighty-nine million, four hundred twelve thousand, nine hundred ninety-six".

Divisors: 1 2 4 47 94 188 95688367 191376734 382753468 4497353249 8994706498 17989412996