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13206887984 = 242713045869
BaseRepresentation
bin11000100110011000…
…10001111000110000
31021002102002102102102
430103030101320300
5204021430403414
610022301235532
7645164460413
oct142314217060
937072072372
1013206887984
115667a42464
122686b62ba8
1313261cb224
148d4021b7a
155246bbede
hex313311e30

13206887984 has 20 divisors (see below), whose sum is σ = 25682775840. Its totient is φ = 6579074880.

The previous prime is 13206887959. The next prime is 13206887987. The reversal of 13206887984 is 48978860231.

It is a super-3 number, since 3×132068879843 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13206887987) 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, 1518599 + ... + 1527270.

It is an arithmetic number, because the mean of its divisors is an integer number (1284138792).

Almost surely, 213206887984 is an apocalyptic number.

It is an amenable number.

13206887984 is a deficient number, since it is larger than the sum of its proper divisors (12475887856).

13206887984 is a wasteful number, since it uses less digits than its factorization.

13206887984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046148 (or 3046142 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 13206887984 in words is "thirteen billion, two hundred six million, eight hundred eighty-seven thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 271 542 1084 2168 4336 3045869 6091738 12183476 24366952 48733904 825430499 1650860998 3301721996 6603443992 13206887984