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13888982906 = 2231931564427
BaseRepresentation
bin11001110111101100…
…10000111101111010
31022211221120102202022
430323312100331322
5211421034423111
610214105034442
71001116256351
oct147366207572
938757512668
1013888982906
115987a72477
122837485a22
13140460b8a6
1495a858998
155645042db
hex33bd90f7a

13888982906 has 16 divisors (see below), whose sum is σ = 21851930304. Its totient is φ = 6608135424.

The previous prime is 13888982803. The next prime is 13888982911. The reversal of 13888982906 is 60928988831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773336 + ... + 791091.

It is an arithmetic number, because the mean of its divisors is an integer number (1365745644).

Almost surely, 213888982906 is an apocalyptic number.

13888982906 is a deficient number, since it is larger than the sum of its proper divisors (7962947398).

13888982906 is a wasteful number, since it uses less digits than its factorization.

13888982906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564645.

The product of its (nonzero) digits is 11943936, while the sum is 62.

The spelling of 13888982906 in words is "thirteen billion, eight hundred eighty-eight million, nine hundred eighty-two thousand, nine hundred six".

Divisors: 1 2 23 46 193 386 4439 8878 1564427 3128854 35981821 71963642 301934411 603868822 6944491453 13888982906