Search a number
-
+
13889977740 = 22335198271637
BaseRepresentation
bin11001110111110100…
…00011110110001100
31022212000102222102000
430323322003312030
5211421313241430
610214142232300
71001130601632
oct147372036614
938760388360
1013889977740
115988591951
122837885690
131404899652
1495aa37352
1556464de60
hex33be83d8c

13889977740 has 192 divisors, whose sum is σ = 45570470400. Its totient is φ = 3502662912.

The previous prime is 13889977649. The next prime is 13889977757. The reversal of 13889977740 is 4777998831.

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 63 ways as a sum of consecutive naturals, for example, 8484202 + ... + 8485838.

It is an arithmetic number, because the mean of its divisors is an integer number (237346200).

Almost surely, 213889977740 is an apocalyptic number.

13889977740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13889977740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22785235200).

13889977740 is an abundant number, since it is smaller than the sum of its proper divisors (31680492660).

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

13889977740 is a wasteful number, since it uses less digits than its factorization.

13889977740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 63.

The spelling of 13889977740 in words is "thirteen billion, eight hundred eighty-nine million, nine hundred seventy-seven thousand, seven hundred forty".