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13885181408 = 257559111087
BaseRepresentation
bin11001110111001111…
…10000110111100000
31022211200102022002002
430323213300313200
5211414101301113
610213451343132
71001042044310
oct147347606740
938750368062
1013885181408
11598590633a
122836151aa8
1314038aa497
1495a149440
15564002c58
hex33b9f0de0

13885181408 has 48 divisors (see below), whose sum is σ = 31250064384. Its totient is φ = 5949191040.

The previous prime is 13885181369. The next prime is 13885181423. The reversal of 13885181408 is 80418158831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246841 + ... + 1257927.

It is an arithmetic number, because the mean of its divisors is an integer number (651043008).

Almost surely, 213885181408 is an apocalyptic number.

It is an amenable number.

13885181408 is an abundant number, since it is smaller than the sum of its proper divisors (17364882976).

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

13885181408 is a wasteful number, since it uses less digits than its factorization.

13885181408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16695 (or 16687 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 47.

The spelling of 13885181408 in words is "thirteen billion, eight hundred eighty-five million, one hundred eighty-one thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 5591 11087 11182 22174 22364 39137 44348 44728 77609 78274 88696 89456 155218 156548 177392 178912 310436 313096 354784 620872 626192 1241744 1252384 2483488 61987417 123974834 247949668 433911919 495899336 867823838 991798672 1735647676 1983597344 3471295352 6942590704 13885181408