Base | Representation |
---|---|
bin | 1000101000101… |
… | …00110101110010 |
3 | 12001022012000210 |
4 | 10110110311302 |
5 | 122020441411 |
6 | 11104324550 |
7 | 1536463620 |
oct | 424246562 |
9 | 161265023 |
10 | 72437106 |
11 | 37986085 |
12 | 20313756 |
13 | 12012bc1 |
14 | 9898510 |
15 | 655cca6 |
hex | 4514d72 |
72437106 has 32 divisors (see below), whose sum is σ = 166792320. Its totient is φ = 20543616.
The previous prime is 72437089. The next prime is 72437107. The reversal of 72437106 is 60173427.
It is not an unprimeable number, because it can be changed into a prime (72437107) 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, 541 + ... + 12048.
It is an arithmetic number, because the mean of its divisors is an integer number (5212260).
Almost surely, 272437106 is an apocalyptic number.
72437106 is an abundant number, since it is smaller than the sum of its proper divisors (94355214).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72437106 is a wasteful number, since it uses less digits than its factorization.
72437106 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12738.
The product of its (nonzero) digits is 7056, while the sum is 30.
The square root of 72437106 is about 8510.9991187874. Note that the first 3 decimals coincide. The cubic root of 72437106 is about 416.8569344002.
The spelling of 72437106 in words is "seventy-two million, four hundred thirty-seven thousand, one hundred six".
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