Base | Representation |
---|---|
bin | 1000000110101000111… |
… | …0010011110000000000 |
3 | 111022100120001010010000 |
4 | 2001222032103300000 |
5 | 4240111044324110 |
6 | 143542435040000 |
7 | 13026012506400 |
oct | 2015216236000 |
9 | 438316033100 |
10 | 139221089280 |
11 | 54052747a79 |
12 | 22b94a40000 |
13 | 101893b4290 |
14 | 6a49dd2800 |
15 | 394c6631c0 |
hex | 206a393c00 |
139221089280 has 2640 divisors, whose sum is σ = 683093005056. Its totient is φ = 26754416640.
The previous prime is 139221089237. The next prime is 139221089303. The reversal of 139221089280 is 82980122931.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 4491002865 + ... + 4491002895.
Almost surely, 2139221089280 is an apocalyptic number.
139221089280 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 139221089280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341546502528).
139221089280 is an abundant number, since it is smaller than the sum of its proper divisors (543871915776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139221089280 is a wasteful number, since it uses less digits than its factorization.
139221089280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 112 (or 78 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
The spelling of 139221089280 in words is "one hundred thirty-nine billion, two hundred twenty-one million, eighty-nine thousand, two hundred eighty".
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