Base | Representation |
---|---|
bin | 11011001010111101… |
… | …110100100111000000 |
3 | 2210022020220221200000 |
4 | 123022331310213000 |
5 | 434222300221210 |
6 | 21223001400000 |
7 | 2051661321300 |
oct | 331275644700 |
9 | 83266827600 |
10 | 29175007680 |
11 | 114115930a5 |
12 | 57a2799000 |
13 | 299c4a1670 |
14 | 15aaa55600 |
15 | b5b4b6ac0 |
hex | 6caf749c0 |
29175007680 has 2016 divisors, whose sum is σ = 141657384960. Its totient is φ = 5643509760.
The previous prime is 29175007619. The next prime is 29175007681. The reversal of 29175007680 is 8670057192.
It is a tau number, because it is divible by the number of its divisors (2016).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29175007681) by changing a digit.
It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 941129265 + ... + 941129295.
It is an arithmetic number, because the mean of its divisors is an integer number (70266560).
Almost surely, 229175007680 is an apocalyptic number.
29175007680 is a gapful number since it is divisible by the number (20) 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 29175007680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70828692480).
29175007680 is an abundant number, since it is smaller than the sum of its proper divisors (112482377280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
29175007680 is a wasteful number, since it uses less digits than its factorization.
29175007680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 109 (or 80 counting only the distinct ones).
The product of its (nonzero) digits is 211680, while the sum is 45.
The spelling of 29175007680 in words is "twenty-nine billion, one hundred seventy-five million, seven thousand, six hundred eighty".
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