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13896428088 = 23319191159553
BaseRepresentation
bin11001111000100101…
…01010101000111000
31022212110120200121210
430330102222220320
5211424441144323
610214532403120
71001236455414
oct147422525070
938773520553
1013896428088
115991198114
122839a764a0
13140601761a
1495b835d44
15564ec5293
hex33c4aaa38

13896428088 has 64 divisors (see below), whose sum is σ = 36761241600. Its totient is φ = 4365342720.

The previous prime is 13896428081. The next prime is 13896428089. The reversal of 13896428088 is 88082469831.

It is a super-2 number, since 2×138964280882 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13896428081) 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, 7320 + ... + 166872.

It is an arithmetic number, because the mean of its divisors is an integer number (574394400).

Almost surely, 213896428088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13896428088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18380620800).

13896428088 is an abundant number, since it is smaller than the sum of its proper divisors (22864813512).

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

13896428088 is a wasteful number, since it uses less digits than its factorization.

13896428088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159772 (or 159768 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 13896428088 in words is "thirteen billion, eight hundred ninety-six million, four hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 191 228 382 456 573 764 1146 1528 2292 3629 4584 7258 10887 14516 21774 29032 43548 87096 159553 319106 478659 638212 957318 1276424 1914636 3031507 3829272 6063014 9094521 12126028 18189042 24252056 30474623 36378084 60949246 72756168 91423869 121898492 182847738 243796984 365695476 579017837 731390952 1158035674 1737053511 2316071348 3474107022 4632142696 6948214044 13896428088