Base | Representation |
---|---|
bin | 11111011011010111100… |
… | …011001010000000000000 |
3 | 21122110112111120021210000 |
4 | 133123113203022000000 |
5 | 240341021103300112 |
6 | 4332051533440000 |
7 | 312014062154520 |
oct | 37332743120000 |
9 | 7573474507700 |
10 | 2159689900032 |
11 | 762a12711285 |
12 | 2aa68b940000 |
13 | 1288724a7c92 |
14 | 7675b121680 |
15 | 3b2a26137dc |
hex | 1f6d78ca000 |
2159689900032 has 280 divisors, whose sum is σ = 7373745045216. Its totient is φ = 617052930048.
The previous prime is 2159689900019. The next prime is 2159689900073. The reversal of 2159689900032 is 2300099869512.
It is a happy number.
It is a super-5 number, since 5×21596899000325 (a number of 63 digits) contains 55555 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4412383 + ... + 4877345.
Almost surely, 22159689900032 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 2159689900032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3686872522608).
2159689900032 is an abundant number, since it is smaller than the sum of its proper divisors (5214055145184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2159689900032 is an frugal number, since it uses more digits than its factorization.
2159689900032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 465008 (or 464975 counting only the distinct ones).
The product of its (nonzero) digits is 2099520, while the sum is 54.
The spelling of 2159689900032 in words is "two trillion, one hundred fifty-nine billion, six hundred eighty-nine million, nine hundred thousand, thirty-two".
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