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13208786148 = 2237328353281
BaseRepresentation
bin11000100110100111…
…00001010011100100
31021002112122212012210
430103103201103210
5204022422124043
610022410043420
7645216554415
oct142323412344
937075585183
1013208786148
115669019598
122687719570
1313267141bc
148d439780c
15524944633
hex3134e14e4

13208786148 has 48 divisors (see below), whose sum is σ = 31353686336. Its totient is φ = 4327188480.

The previous prime is 13208786147. The next prime is 13208786153. The reversal of 13208786148 is 84168780231.

It is a junction number, because it is equal to n+sod(n) for n = 13208786097 and 13208786106.

It is not an unprimeable number, because it can be changed into a prime (13208786147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221268 + ... + 274548.

Almost surely, 213208786148 is an apocalyptic number.

It is an amenable number.

13208786148 is an abundant number, since it is smaller than the sum of its proper divisors (18144900188).

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

13208786148 is a wasteful number, since it uses less digits than its factorization.

13208786148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53644 (or 53642 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 13208786148 in words is "thirteen billion, two hundred eight million, seven hundred eighty-six thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 73 146 219 283 292 438 566 849 876 1132 1698 3396 20659 41318 53281 61977 82636 106562 123954 159843 213124 247908 319686 639372 3889513 7779026 11668539 15078523 15558052 23337078 30157046 45235569 46674156 60314092 90471138 180942276 1100732179 2201464358 3302196537 4402928716 6604393074 13208786148